Home / 87,281.20-120,461.73-51,475.15

Finding the Fourth Proportional to 87,281.20, 120,461.73 and 51,475.15

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Solution

The fourth proportional to 87,281.20, 120,461.73 and 51,475.15 is: 71,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.20 : 120,461.73 = 51,475.15 : x
  2. Step 2: Convert to fraction form
    87,281.20/120,461.73 = 51,475.15/x
  3. Step 3: Cross multiply
    87,281.20x = 120,461.73 × 51,475.15
  4. Step 4: Simplify right side
    87,281.20x = 6,200,785,018.70
  5. Step 5: Solve for x
    x = 6,200,785,018.70/87,281.20
  6. Step 6: Final answer
    x = 71,043.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.