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Finding the Fourth Proportional to 87,262.67, 130,772.90 and 39,761.67

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Solution

The fourth proportional to 87,262.67, 130,772.90 and 39,761.67 is: 59,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,262.67 : 130,772.90 = 39,761.67 : x
  2. Step 2: Convert to fraction form
    87,262.67/130,772.90 = 39,761.67/x
  3. Step 3: Cross multiply
    87,262.67x = 130,772.90 × 39,761.67
  4. Step 4: Simplify right side
    87,262.67x = 5,199,748,695.93
  5. Step 5: Solve for x
    x = 5,199,748,695.93/87,262.67
  6. Step 6: Final answer
    x = 59,587.32

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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.