Home / 87,757.59-131,555.61-47,718.09

Finding the Fourth Proportional to 87,757.59, 131,555.61 and 47,718.09

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Solution

The fourth proportional to 87,757.59, 131,555.61 and 47,718.09 is: 71,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,757.59 : 131,555.61 = 47,718.09 : x
  2. Step 2: Convert to fraction form
    87,757.59/131,555.61 = 47,718.09/x
  3. Step 3: Cross multiply
    87,757.59x = 131,555.61 × 47,718.09
  4. Step 4: Simplify right side
    87,757.59x = 6,277,582,437.98
  5. Step 5: Solve for x
    x = 6,277,582,437.98/87,757.59
  6. Step 6: Final answer
    x = 71,533.21

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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.