Home / 79,617.12-119,427.30-20,453.10

Finding the Fourth Proportional to 79,617.12, 119,427.30 and 20,453.10

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Solution

The fourth proportional to 79,617.12, 119,427.30 and 20,453.10 is: 30,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,617.12 : 119,427.30 = 20,453.10 : x
  2. Step 2: Convert to fraction form
    79,617.12/119,427.30 = 20,453.10/x
  3. Step 3: Cross multiply
    79,617.12x = 119,427.30 × 20,453.10
  4. Step 4: Simplify right side
    79,617.12x = 2,442,658,509.63
  5. Step 5: Solve for x
    x = 2,442,658,509.63/79,617.12
  6. Step 6: Final answer
    x = 30,680.07

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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.