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Finding the Fourth Proportional to 75,265.50, 103,869.63 and 45,045.08

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Solution

The fourth proportional to 75,265.50, 103,869.63 and 45,045.08 is: 62,164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,265.50 : 103,869.63 = 45,045.08 : x
  2. Step 2: Convert to fraction form
    75,265.50/103,869.63 = 45,045.08/x
  3. Step 3: Cross multiply
    75,265.50x = 103,869.63 × 45,045.08
  4. Step 4: Simplify right side
    75,265.50x = 4,678,815,273.57
  5. Step 5: Solve for x
    x = 4,678,815,273.57/75,265.50
  6. Step 6: Final answer
    x = 62,164.14

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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.