Home / 67,489.40-93,135.36-39,196.91

Finding the Fourth Proportional to 67,489.40, 93,135.36 and 39,196.91

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Solution

The fourth proportional to 67,489.40, 93,135.36 and 39,196.91 is: 54,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,489.40 : 93,135.36 = 39,196.91 : x
  2. Step 2: Convert to fraction form
    67,489.40/93,135.36 = 39,196.91/x
  3. Step 3: Cross multiply
    67,489.40x = 93,135.36 × 39,196.91
  4. Step 4: Simplify right side
    67,489.40x = 3,650,618,323.74
  5. Step 5: Solve for x
    x = 3,650,618,323.74/67,489.40
  6. Step 6: Final answer
    x = 54,091.73

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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.