Home / 68,686.38-94,790.66-38,471.76

Finding the Fourth Proportional to 68,686.38, 94,790.66 and 38,471.76

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Solution

The fourth proportional to 68,686.38, 94,790.66 and 38,471.76 is: 53,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,686.38 : 94,790.66 = 38,471.76 : x
  2. Step 2: Convert to fraction form
    68,686.38/94,790.66 = 38,471.76/x
  3. Step 3: Cross multiply
    68,686.38x = 94,790.66 × 38,471.76
  4. Step 4: Simplify right side
    68,686.38x = 3,646,763,329.40
  5. Step 5: Solve for x
    x = 3,646,763,329.40/68,686.38
  6. Step 6: Final answer
    x = 53,092.96

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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.