Home / 78,847.40-118,306.20-41,398.40

Finding the Fourth Proportional to 78,847.40, 118,306.20 and 41,398.40

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Solution

The fourth proportional to 78,847.40, 118,306.20 and 41,398.40 is: 62,116.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847.40 : 118,306.20 = 41,398.40 : x
  2. Step 2: Convert to fraction form
    78,847.40/118,306.20 = 41,398.40/x
  3. Step 3: Cross multiply
    78,847.40x = 118,306.20 × 41,398.40
  4. Step 4: Simplify right side
    78,847.40x = 4,897,687,390.08
  5. Step 5: Solve for x
    x = 4,897,687,390.08/78,847.40
  6. Step 6: Final answer
    x = 62,116.03

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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.