Home / 60,155.54-90,232.25-20,711.78

Finding the Fourth Proportional to 60,155.54, 90,232.25 and 20,711.78

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Solution

The fourth proportional to 60,155.54, 90,232.25 and 20,711.78 is: 31,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,155.54 : 90,232.25 = 20,711.78 : x
  2. Step 2: Convert to fraction form
    60,155.54/90,232.25 = 20,711.78/x
  3. Step 3: Cross multiply
    60,155.54x = 90,232.25 × 20,711.78
  4. Step 4: Simplify right side
    60,155.54x = 1,868,870,407.35
  5. Step 5: Solve for x
    x = 1,868,870,407.35/60,155.54
  6. Step 6: Final answer
    x = 31,067.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.