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Finding the Fourth Proportional to 61,419, 92,124.84 and 36,132.72

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Solution

The fourth proportional to 61,419, 92,124.84 and 36,132.72 is: 54,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,419 : 92,124.84 = 36,132.72 : x
  2. Step 2: Convert to fraction form
    61,419/92,124.84 = 36,132.72/x
  3. Step 3: Cross multiply
    61,419x = 92,124.84 × 36,132.72
  4. Step 4: Simplify right side
    61,419x = 3,328,721,048.76
  5. Step 5: Solve for x
    x = 3,328,721,048.76/61,419
  6. Step 6: Final answer
    x = 54,196.93

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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.