Home / 87,347.36-120,539.76-49,623.68

Finding the Fourth Proportional to 87,347.36, 120,539.76 and 49,623.68

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Solution

The fourth proportional to 87,347.36, 120,539.76 and 49,623.68 is: 68,480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,347.36 : 120,539.76 = 49,623.68 : x
  2. Step 2: Convert to fraction form
    87,347.36/120,539.76 = 49,623.68/x
  3. Step 3: Cross multiply
    87,347.36x = 120,539.76 × 49,623.68
  4. Step 4: Simplify right side
    87,347.36x = 5,981,626,477.52
  5. Step 5: Solve for x
    x = 5,981,626,477.52/87,347.36
  6. Step 6: Final answer
    x = 68,480.91

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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.