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Finding the Fourth Proportional to 61,748, 92,621.92 and 15,000.80

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Solution

The fourth proportional to 61,748, 92,621.92 and 15,000.80 is: 22,501.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,748 : 92,621.92 = 15,000.80 : x
  2. Step 2: Convert to fraction form
    61,748/92,621.92 = 15,000.80/x
  3. Step 3: Cross multiply
    61,748x = 92,621.92 × 15,000.80
  4. Step 4: Simplify right side
    61,748x = 1,389,402,897.54
  5. Step 5: Solve for x
    x = 1,389,402,897.54/61,748
  6. Step 6: Final answer
    x = 22,501.18

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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.