Home / 71,562.08-107,286.64-45,211.20

Finding the Fourth Proportional to 71,562.08, 107,286.64 and 45,211.20

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Solution

The fourth proportional to 71,562.08, 107,286.64 and 45,211.20 is: 67,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,562.08 : 107,286.64 = 45,211.20 : x
  2. Step 2: Convert to fraction form
    71,562.08/107,286.64 = 45,211.20/x
  3. Step 3: Cross multiply
    71,562.08x = 107,286.64 × 45,211.20
  4. Step 4: Simplify right side
    71,562.08x = 4,850,557,738.37
  5. Step 5: Solve for x
    x = 4,850,557,738.37/71,562.08
  6. Step 6: Final answer
    x = 67,781.12

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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.