Home / 67,560.78-93,243.14-38,879.84

Finding the Fourth Proportional to 67,560.78, 93,243.14 and 38,879.84

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Solution

The fourth proportional to 67,560.78, 93,243.14 and 38,879.84 is: 53,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,560.78 : 93,243.14 = 38,879.84 : x
  2. Step 2: Convert to fraction form
    67,560.78/93,243.14 = 38,879.84/x
  3. Step 3: Cross multiply
    67,560.78x = 93,243.14 × 38,879.84
  4. Step 4: Simplify right side
    67,560.78x = 3,625,278,364.30
  5. Step 5: Solve for x
    x = 3,625,278,364.30/67,560.78
  6. Step 6: Final answer
    x = 53,659.51

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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.