Home / 67,639.20-93,242.72-47,434.88

Finding the Fourth Proportional to 67,639.20, 93,242.72 and 47,434.88

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Solution

The fourth proportional to 67,639.20, 93,242.72 and 47,434.88 is: 65,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,639.20 : 93,242.72 = 47,434.88 : x
  2. Step 2: Convert to fraction form
    67,639.20/93,242.72 = 47,434.88/x
  3. Step 3: Cross multiply
    67,639.20x = 93,242.72 × 47,434.88
  4. Step 4: Simplify right side
    67,639.20x = 4,422,957,234.07
  5. Step 5: Solve for x
    x = 4,422,957,234.07/67,639.20
  6. Step 6: Final answer
    x = 65,390.44

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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.