Home / 78,606.38-117,909.47-25,297.18

Finding the Fourth Proportional to 78,606.38, 117,909.47 and 25,297.18

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Solution

The fourth proportional to 78,606.38, 117,909.47 and 25,297.18 is: 37,945.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,606.38 : 117,909.47 = 25,297.18 : x
  2. Step 2: Convert to fraction form
    78,606.38/117,909.47 = 25,297.18/x
  3. Step 3: Cross multiply
    78,606.38x = 117,909.47 × 25,297.18
  4. Step 4: Simplify right side
    78,606.38x = 2,982,776,854.76
  5. Step 5: Solve for x
    x = 2,982,776,854.76/78,606.38
  6. Step 6: Final answer
    x = 37,945.73

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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.