Home / 87,386.40-131,092.56-28,211.04

Finding the Fourth Proportional to 87,386.40, 131,092.56 and 28,211.04

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Solution

The fourth proportional to 87,386.40, 131,092.56 and 28,211.04 is: 42,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.40 : 131,092.56 = 28,211.04 : x
  2. Step 2: Convert to fraction form
    87,386.40/131,092.56 = 28,211.04/x
  3. Step 3: Cross multiply
    87,386.40x = 131,092.56 × 28,211.04
  4. Step 4: Simplify right side
    87,386.40x = 3,698,257,453.86
  5. Step 5: Solve for x
    x = 3,698,257,453.86/87,386.40
  6. Step 6: Final answer
    x = 42,320.74

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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.