Home / 87,801.47-121,166.79-51,524.63

Finding the Fourth Proportional to 87,801.47, 121,166.79 and 51,524.63

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Solution

The fourth proportional to 87,801.47, 121,166.79 and 51,524.63 is: 71,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.47 : 121,166.79 = 51,524.63 : x
  2. Step 2: Convert to fraction form
    87,801.47/121,166.79 = 51,524.63/x
  3. Step 3: Cross multiply
    87,801.47x = 121,166.79 × 51,524.63
  4. Step 4: Simplify right side
    87,801.47x = 6,243,074,023.04
  5. Step 5: Solve for x
    x = 6,243,074,023.04/87,801.47
  6. Step 6: Final answer
    x = 71,104.44

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Double scale
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1.5x scale

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.