Home / 108,531.59-162,813.77-38,405.43

Finding the Fourth Proportional to 108,531.59, 162,813.77 and 38,405.43

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Solution

The fourth proportional to 108,531.59, 162,813.77 and 38,405.43 is: 57,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,531.59 : 162,813.77 = 38,405.43 : x
  2. Step 2: Convert to fraction form
    108,531.59/162,813.77 = 38,405.43/x
  3. Step 3: Cross multiply
    108,531.59x = 162,813.77 × 38,405.43
  4. Step 4: Simplify right side
    108,531.59x = 6,252,932,654.74
  5. Step 5: Solve for x
    x = 6,252,932,654.74/108,531.59
  6. Step 6: Final answer
    x = 57,613.94

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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.