Home / 67,179.12-92,711.28-38,894.64

Finding the Fourth Proportional to 67,179.12, 92,711.28 and 38,894.64

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Solution

The fourth proportional to 67,179.12, 92,711.28 and 38,894.64 is: 53,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,179.12 : 92,711.28 = 38,894.64 : x
  2. Step 2: Convert to fraction form
    67,179.12/92,711.28 = 38,894.64/x
  3. Step 3: Cross multiply
    67,179.12x = 92,711.28 × 38,894.64
  4. Step 4: Simplify right side
    67,179.12x = 3,605,971,859.54
  5. Step 5: Solve for x
    x = 3,605,971,859.54/67,179.12
  6. Step 6: Final answer
    x = 53,676.97

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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.