Home / 79,540.48-119,325.12-64,879.36

Finding the Fourth Proportional to 79,540.48, 119,325.12 and 64,879.36

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Solution

The fourth proportional to 79,540.48, 119,325.12 and 64,879.36 is: 97,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,540.48 : 119,325.12 = 64,879.36 : x
  2. Step 2: Convert to fraction form
    79,540.48/119,325.12 = 64,879.36/x
  3. Step 3: Cross multiply
    79,540.48x = 119,325.12 × 64,879.36
  4. Step 4: Simplify right side
    79,540.48x = 7,741,737,417.52
  5. Step 5: Solve for x
    x = 7,741,737,417.52/79,540.48
  6. Step 6: Final answer
    x = 97,330.79

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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.