Home / 79,453.47-119,180.10-20,289.18

Finding the Fourth Proportional to 79,453.47, 119,180.10 and 20,289.18

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Solution

The fourth proportional to 79,453.47, 119,180.10 and 20,289.18 is: 30,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,453.47 : 119,180.10 = 20,289.18 : x
  2. Step 2: Convert to fraction form
    79,453.47/119,180.10 = 20,289.18/x
  3. Step 3: Cross multiply
    79,453.47x = 119,180.10 × 20,289.18
  4. Step 4: Simplify right side
    79,453.47x = 2,418,066,501.32
  5. Step 5: Solve for x
    x = 2,418,066,501.32/79,453.47
  6. Step 6: Final answer
    x = 30,433.74

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.