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Finding the Fourth Proportional to 55,445, 83,167.50 and 13,892.04

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Solution

The fourth proportional to 55,445, 83,167.50 and 13,892.04 is: 20,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,445 : 83,167.50 = 13,892.04 : x
  2. Step 2: Convert to fraction form
    55,445/83,167.50 = 13,892.04/x
  3. Step 3: Cross multiply
    55,445x = 83,167.50 × 13,892.04
  4. Step 4: Simplify right side
    55,445x = 1,155,366,236.70
  5. Step 5: Solve for x
    x = 1,155,366,236.70/55,445
  6. Step 6: Final answer
    x = 20,838.06

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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.