Home / 79,403.40-119,102.25-20,238.57

Finding the Fourth Proportional to 79,403.40, 119,102.25 and 20,238.57

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Solution

The fourth proportional to 79,403.40, 119,102.25 and 20,238.57 is: 30,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,403.40 : 119,102.25 = 20,238.57 : x
  2. Step 2: Convert to fraction form
    79,403.40/119,102.25 = 20,238.57/x
  3. Step 3: Cross multiply
    79,403.40x = 119,102.25 × 20,238.57
  4. Step 4: Simplify right side
    79,403.40x = 2,410,459,223.78
  5. Step 5: Solve for x
    x = 2,410,459,223.78/79,403.40
  6. Step 6: Final answer
    x = 30,357.13

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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.