Home / 75,111.90-103,654.45-43,280.52

Finding the Fourth Proportional to 75,111.90, 103,654.45 and 43,280.52

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Solution

The fourth proportional to 75,111.90, 103,654.45 and 43,280.52 is: 59,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,111.90 : 103,654.45 = 43,280.52 : x
  2. Step 2: Convert to fraction form
    75,111.90/103,654.45 = 43,280.52/x
  3. Step 3: Cross multiply
    75,111.90x = 103,654.45 × 43,280.52
  4. Step 4: Simplify right side
    75,111.90x = 4,486,218,496.31
  5. Step 5: Solve for x
    x = 4,486,218,496.31/75,111.90
  6. Step 6: Final answer
    x = 59,727.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.