Home / 75,686.60-113,615.97-38,288.90

Finding the Fourth Proportional to 75,686.60, 113,615.97 and 38,288.90

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Solution

The fourth proportional to 75,686.60, 113,615.97 and 38,288.90 is: 57,476.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,686.60 : 113,615.97 = 38,288.90 : x
  2. Step 2: Convert to fraction form
    75,686.60/113,615.97 = 38,288.90/x
  3. Step 3: Cross multiply
    75,686.60x = 113,615.97 × 38,288.90
  4. Step 4: Simplify right side
    75,686.60x = 4,350,230,654.19
  5. Step 5: Solve for x
    x = 4,350,230,654.19/75,686.60
  6. Step 6: Final answer
    x = 57,476.89

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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.