Home / 87,281.70-120,462.42-51,475.65

Finding the Fourth Proportional to 87,281.70, 120,462.42 and 51,475.65

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Solution

The fourth proportional to 87,281.70, 120,462.42 and 51,475.65 is: 71,044.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.70 : 120,462.42 = 51,475.65 : x
  2. Step 2: Convert to fraction form
    87,281.70/120,462.42 = 51,475.65/x
  3. Step 3: Cross multiply
    87,281.70x = 120,462.42 × 51,475.65
  4. Step 4: Simplify right side
    87,281.70x = 6,200,880,767.76
  5. Step 5: Solve for x
    x = 6,200,880,767.76/87,281.70
  6. Step 6: Final answer
    x = 71,044.46

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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.