Home / 67,913.92-93,720-38,105.92

Finding the Fourth Proportional to 67,913.92, 93,720 and 38,105.92

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Solution

The fourth proportional to 67,913.92, 93,720 and 38,105.92 is: 52,585.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,913.92 : 93,720 = 38,105.92 : x
  2. Step 2: Convert to fraction form
    67,913.92/93,720 = 38,105.92/x
  3. Step 3: Cross multiply
    67,913.92x = 93,720 × 38,105.92
  4. Step 4: Simplify right side
    67,913.92x = 3,571,286,822.40
  5. Step 5: Solve for x
    x = 3,571,286,822.40/67,913.92
  6. Step 6: Final answer
    x = 52,585.49

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Double scale
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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.