Home / 87,445.46-131,172.29-28,285.74

Finding the Fourth Proportional to 87,445.46, 131,172.29 and 28,285.74

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Solution

The fourth proportional to 87,445.46, 131,172.29 and 28,285.74 is: 42,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.46 : 131,172.29 = 28,285.74 : x
  2. Step 2: Convert to fraction form
    87,445.46/131,172.29 = 28,285.74/x
  3. Step 3: Cross multiply
    87,445.46x = 131,172.29 × 28,285.74
  4. Step 4: Simplify right side
    87,445.46x = 3,710,305,290.14
  5. Step 5: Solve for x
    x = 3,710,305,290.14/87,445.46
  6. Step 6: Final answer
    x = 42,429.94

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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.