Home / 71,723.20-107,584.80-38,545.60

Finding the Fourth Proportional to 71,723.20, 107,584.80 and 38,545.60

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Solution

The fourth proportional to 71,723.20, 107,584.80 and 38,545.60 is: 57,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,723.20 : 107,584.80 = 38,545.60 : x
  2. Step 2: Convert to fraction form
    71,723.20/107,584.80 = 38,545.60/x
  3. Step 3: Cross multiply
    71,723.20x = 107,584.80 × 38,545.60
  4. Step 4: Simplify right side
    71,723.20x = 4,146,920,666.88
  5. Step 5: Solve for x
    x = 4,146,920,666.88/71,723.20
  6. Step 6: Final answer
    x = 57,818.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.