Home / 60,126.23-90,141.27-28,520.39

Finding the Fourth Proportional to 60,126.23, 90,141.27 and 28,520.39

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Solution

The fourth proportional to 60,126.23, 90,141.27 and 28,520.39 is: 42,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,126.23 : 90,141.27 = 28,520.39 : x
  2. Step 2: Convert to fraction form
    60,126.23/90,141.27 = 28,520.39/x
  3. Step 3: Cross multiply
    60,126.23x = 90,141.27 × 28,520.39
  4. Step 4: Simplify right side
    60,126.23x = 2,570,863,724.79
  5. Step 5: Solve for x
    x = 2,570,863,724.79/60,126.23
  6. Step 6: Final answer
    x = 42,757.78

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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.