Home / 67,854.30-93,639.14-40,991.86

Finding the Fourth Proportional to 67,854.30, 93,639.14 and 40,991.86

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Solution

The fourth proportional to 67,854.30, 93,639.14 and 40,991.86 is: 56,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,854.30 : 93,639.14 = 40,991.86 : x
  2. Step 2: Convert to fraction form
    67,854.30/93,639.14 = 40,991.86/x
  3. Step 3: Cross multiply
    67,854.30x = 93,639.14 × 40,991.86
  4. Step 4: Simplify right side
    67,854.30x = 3,838,442,517.40
  5. Step 5: Solve for x
    x = 3,838,442,517.40/67,854.30
  6. Step 6: Final answer
    x = 56,568.89

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1.5x scale

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.