Home / 88,279.12-121,860.48-54,301.38

Finding the Fourth Proportional to 88,279.12, 121,860.48 and 54,301.38

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Solution

The fourth proportional to 88,279.12, 121,860.48 and 54,301.38 is: 74,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,279.12 : 121,860.48 = 54,301.38 : x
  2. Step 2: Convert to fraction form
    88,279.12/121,860.48 = 54,301.38/x
  3. Step 3: Cross multiply
    88,279.12x = 121,860.48 × 54,301.38
  4. Step 4: Simplify right side
    88,279.12x = 6,617,192,231.46
  5. Step 5: Solve for x
    x = 6,617,192,231.46/88,279.12
  6. Step 6: Final answer
    x = 74,957.61

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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.