Home / 87,801.48-121,166.37-49,561.38

Finding the Fourth Proportional to 87,801.48, 121,166.37 and 49,561.38

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Solution

The fourth proportional to 87,801.48, 121,166.37 and 49,561.38 is: 68,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.48 : 121,166.37 = 49,561.38 : x
  2. Step 2: Convert to fraction form
    87,801.48/121,166.37 = 49,561.38/x
  3. Step 3: Cross multiply
    87,801.48x = 121,166.37 × 49,561.38
  4. Step 4: Simplify right side
    87,801.48x = 6,005,172,506.79
  5. Step 5: Solve for x
    x = 6,005,172,506.79/87,801.48
  6. Step 6: Final answer
    x = 68,394.89

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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.