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Finding the Fourth Proportional to 85,287.93, 127,948.29 and 26,124.11

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Solution

The fourth proportional to 85,287.93, 127,948.29 and 26,124.11 is: 39,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,287.93 : 127,948.29 = 26,124.11 : x
  2. Step 2: Convert to fraction form
    85,287.93/127,948.29 = 26,124.11/x
  3. Step 3: Cross multiply
    85,287.93x = 127,948.29 × 26,124.11
  4. Step 4: Simplify right side
    85,287.93x = 3,342,535,202.27
  5. Step 5: Solve for x
    x = 3,342,535,202.27/85,287.93
  6. Step 6: Final answer
    x = 39,191.19

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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.