Home / 73,045.20-109,559.32-20,458.92

Finding the Fourth Proportional to 73,045.20, 109,559.32 and 20,458.92

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Solution

The fourth proportional to 73,045.20, 109,559.32 and 20,458.92 is: 30,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,045.20 : 109,559.32 = 20,458.92 : x
  2. Step 2: Convert to fraction form
    73,045.20/109,559.32 = 20,458.92/x
  3. Step 3: Cross multiply
    73,045.20x = 109,559.32 × 20,458.92
  4. Step 4: Simplify right side
    73,045.20x = 2,241,465,363.13
  5. Step 5: Solve for x
    x = 2,241,465,363.13/73,045.20
  6. Step 6: Final answer
    x = 30,686.00

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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.