Home / 87,573.09-131,378.10-28,404.16

Finding the Fourth Proportional to 87,573.09, 131,378.10 and 28,404.16

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Solution

The fourth proportional to 87,573.09, 131,378.10 and 28,404.16 is: 42,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.09 : 131,378.10 = 28,404.16 : x
  2. Step 2: Convert to fraction form
    87,573.09/131,378.10 = 28,404.16/x
  3. Step 3: Cross multiply
    87,573.09x = 131,378.10 × 28,404.16
  4. Step 4: Simplify right side
    87,573.09x = 3,731,684,572.90
  5. Step 5: Solve for x
    x = 3,731,684,572.90/87,573.09
  6. Step 6: Final answer
    x = 42,612.23

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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.