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Finding the Fourth Proportional to 62,632, 86,477.52 and 40,314.88

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Solution

The fourth proportional to 62,632, 86,477.52 and 40,314.88 is: 55,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,632 : 86,477.52 = 40,314.88 : x
  2. Step 2: Convert to fraction form
    62,632/86,477.52 = 40,314.88/x
  3. Step 3: Cross multiply
    62,632x = 86,477.52 × 40,314.88
  4. Step 4: Simplify right side
    62,632x = 3,486,330,841.50
  5. Step 5: Solve for x
    x = 3,486,330,841.50/62,632
  6. Step 6: Final answer
    x = 55,663.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.