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Finding the Fourth Proportional to 61,419.80, 92,000.10 and 54,853.40

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Solution

The fourth proportional to 61,419.80, 92,000.10 and 54,853.40 is: 82,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,419.80 : 92,000.10 = 54,853.40 : x
  2. Step 2: Convert to fraction form
    61,419.80/92,000.10 = 54,853.40/x
  3. Step 3: Cross multiply
    61,419.80x = 92,000.10 × 54,853.40
  4. Step 4: Simplify right side
    61,419.80x = 5,046,518,285.34
  5. Step 5: Solve for x
    x = 5,046,518,285.34/61,419.80
  6. Step 6: Final answer
    x = 82,164.36

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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.