Home / 78,960.32-118,267.68-51,174.08

Finding the Fourth Proportional to 78,960.32, 118,267.68 and 51,174.08

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Solution

The fourth proportional to 78,960.32, 118,267.68 and 51,174.08 is: 76,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,960.32 : 118,267.68 = 51,174.08 : x
  2. Step 2: Convert to fraction form
    78,960.32/118,267.68 = 51,174.08/x
  3. Step 3: Cross multiply
    78,960.32x = 118,267.68 × 51,174.08
  4. Step 4: Simplify right side
    78,960.32x = 6,052,239,717.73
  5. Step 5: Solve for x
    x = 6,052,239,717.73/78,960.32
  6. Step 6: Final answer
    x = 76,649.13

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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.