Home / 54,432.16-75,120.72-30,560.40

Finding the Fourth Proportional to 54,432.16, 75,120.72 and 30,560.40

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Solution

The fourth proportional to 54,432.16, 75,120.72 and 30,560.40 is: 42,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,432.16 : 75,120.72 = 30,560.40 : x
  2. Step 2: Convert to fraction form
    54,432.16/75,120.72 = 30,560.40/x
  3. Step 3: Cross multiply
    54,432.16x = 75,120.72 × 30,560.40
  4. Step 4: Simplify right side
    54,432.16x = 2,295,719,251.49
  5. Step 5: Solve for x
    x = 2,295,719,251.49/54,432.16
  6. Step 6: Final answer
    x = 42,175.79

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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.