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Finding the Fourth Proportional to 60,015.72, 90,036.54 and 30,449.64

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Solution

The fourth proportional to 60,015.72, 90,036.54 and 30,449.64 is: 45,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,015.72 : 90,036.54 = 30,449.64 : x
  2. Step 2: Convert to fraction form
    60,015.72/90,036.54 = 30,449.64/x
  3. Step 3: Cross multiply
    60,015.72x = 90,036.54 × 30,449.64
  4. Step 4: Simplify right side
    60,015.72x = 2,741,580,229.85
  5. Step 5: Solve for x
    x = 2,741,580,229.85/60,015.72
  6. Step 6: Final answer
    x = 45,681.04

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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.