Home / 87,636.79-131,397.67-31,448.71

Finding the Fourth Proportional to 87,636.79, 131,397.67 and 31,448.71

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Solution

The fourth proportional to 87,636.79, 131,397.67 and 31,448.71 is: 47,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636.79 : 131,397.67 = 31,448.71 : x
  2. Step 2: Convert to fraction form
    87,636.79/131,397.67 = 31,448.71/x
  3. Step 3: Cross multiply
    87,636.79x = 131,397.67 × 31,448.71
  4. Step 4: Simplify right side
    87,636.79x = 4,132,287,218.51
  5. Step 5: Solve for x
    x = 4,132,287,218.51/87,636.79
  6. Step 6: Final answer
    x = 47,152.43

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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.