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Finding the Fourth Proportional to 72,877.70, 109,316.55 and 41,691.08

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Solution

The fourth proportional to 72,877.70, 109,316.55 and 41,691.08 is: 62,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,877.70 : 109,316.55 = 41,691.08 : x
  2. Step 2: Convert to fraction form
    72,877.70/109,316.55 = 41,691.08/x
  3. Step 3: Cross multiply
    72,877.70x = 109,316.55 × 41,691.08
  4. Step 4: Simplify right side
    72,877.70x = 4,557,525,031.37
  5. Step 5: Solve for x
    x = 4,557,525,031.37/72,877.70
  6. Step 6: Final answer
    x = 62,536.62

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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.