Home / 79,785.20-119,677.80-64,233.20

Finding the Fourth Proportional to 79,785.20, 119,677.80 and 64,233.20

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Solution

The fourth proportional to 79,785.20, 119,677.80 and 64,233.20 is: 96,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,785.20 : 119,677.80 = 64,233.20 : x
  2. Step 2: Convert to fraction form
    79,785.20/119,677.80 = 64,233.20/x
  3. Step 3: Cross multiply
    79,785.20x = 119,677.80 × 64,233.20
  4. Step 4: Simplify right side
    79,785.20x = 7,687,288,062.96
  5. Step 5: Solve for x
    x = 7,687,288,062.96/79,785.20
  6. Step 6: Final answer
    x = 96,349.80

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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.