Home / 87,301.50-120,470.40-51,483.30

Finding the Fourth Proportional to 87,301.50, 120,470.40 and 51,483.30

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Solution

The fourth proportional to 87,301.50, 120,470.40 and 51,483.30 is: 71,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,301.50 : 120,470.40 = 51,483.30 : x
  2. Step 2: Convert to fraction form
    87,301.50/120,470.40 = 51,483.30/x
  3. Step 3: Cross multiply
    87,301.50x = 120,470.40 × 51,483.30
  4. Step 4: Simplify right side
    87,301.50x = 6,202,213,744.32
  5. Step 5: Solve for x
    x = 6,202,213,744.32/87,301.50
  6. Step 6: Final answer
    x = 71,043.61

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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.