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Finding the Fourth Proportional to 87,611.52, 131,510.80 and 37,716.32

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Solution

The fourth proportional to 87,611.52, 131,510.80 and 37,716.32 is: 56,614.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,611.52 : 131,510.80 = 37,716.32 : x
  2. Step 2: Convert to fraction form
    87,611.52/131,510.80 = 37,716.32/x
  3. Step 3: Cross multiply
    87,611.52x = 131,510.80 × 37,716.32
  4. Step 4: Simplify right side
    87,611.52x = 4,960,103,416.26
  5. Step 5: Solve for x
    x = 4,960,103,416.26/87,611.52
  6. Step 6: Final answer
    x = 56,614.74

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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.