Home / 55,590.28-76,713.96-30,439.78

Finding the Fourth Proportional to 55,590.28, 76,713.96 and 30,439.78

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Solution

The fourth proportional to 55,590.28, 76,713.96 and 30,439.78 is: 42,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,590.28 : 76,713.96 = 30,439.78 : x
  2. Step 2: Convert to fraction form
    55,590.28/76,713.96 = 30,439.78/x
  3. Step 3: Cross multiply
    55,590.28x = 76,713.96 × 30,439.78
  4. Step 4: Simplify right side
    55,590.28x = 2,335,156,065.33
  5. Step 5: Solve for x
    x = 2,335,156,065.33/55,590.28
  6. Step 6: Final answer
    x = 42,006.55

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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.