Home / 87,688.23-131,551.83-40,915.59

Finding the Fourth Proportional to 87,688.23, 131,551.83 and 40,915.59

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Solution

The fourth proportional to 87,688.23, 131,551.83 and 40,915.59 is: 61,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688.23 : 131,551.83 = 40,915.59 : x
  2. Step 2: Convert to fraction form
    87,688.23/131,551.83 = 40,915.59/x
  3. Step 3: Cross multiply
    87,688.23x = 131,551.83 × 40,915.59
  4. Step 4: Simplify right side
    87,688.23x = 5,382,520,740.03
  5. Step 5: Solve for x
    x = 5,382,520,740.03/87,688.23
  6. Step 6: Final answer
    x = 61,382.48

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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.