Home / 77,531.20-116,005.20-51,287.20

Finding the Fourth Proportional to 77,531.20, 116,005.20 and 51,287.20

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Solution

The fourth proportional to 77,531.20, 116,005.20 and 51,287.20 is: 76,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,531.20 : 116,005.20 = 51,287.20 : x
  2. Step 2: Convert to fraction form
    77,531.20/116,005.20 = 51,287.20/x
  3. Step 3: Cross multiply
    77,531.20x = 116,005.20 × 51,287.20
  4. Step 4: Simplify right side
    77,531.20x = 5,949,581,893.44
  5. Step 5: Solve for x
    x = 5,949,581,893.44/77,531.20
  6. Step 6: Final answer
    x = 76,737.91

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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.