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Finding the Fourth Proportional to 61,937.68, 92,912.69 and 19,807.18

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Solution

The fourth proportional to 61,937.68, 92,912.69 and 19,807.18 is: 29,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937.68 : 92,912.69 = 19,807.18 : x
  2. Step 2: Convert to fraction form
    61,937.68/92,912.69 = 19,807.18/x
  3. Step 3: Cross multiply
    61,937.68x = 92,912.69 × 19,807.18
  4. Step 4: Simplify right side
    61,937.68x = 1,840,338,375.11
  5. Step 5: Solve for x
    x = 1,840,338,375.11/61,937.68
  6. Step 6: Final answer
    x = 29,712.74

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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.