Home / 67,957.20-93,781.53-39,657.42

Finding the Fourth Proportional to 67,957.20, 93,781.53 and 39,657.42

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Solution

The fourth proportional to 67,957.20, 93,781.53 and 39,657.42 is: 54,727.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,957.20 : 93,781.53 = 39,657.42 : x
  2. Step 2: Convert to fraction form
    67,957.20/93,781.53 = 39,657.42/x
  3. Step 3: Cross multiply
    67,957.20x = 93,781.53 × 39,657.42
  4. Step 4: Simplify right side
    67,957.20x = 3,719,133,523.45
  5. Step 5: Solve for x
    x = 3,719,133,523.45/67,957.20
  6. Step 6: Final answer
    x = 54,727.59

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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.