Home / 60,639.12-90,906.84-39,816.72

Finding the Fourth Proportional to 60,639.12, 90,906.84 and 39,816.72

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Solution

The fourth proportional to 60,639.12, 90,906.84 and 39,816.72 is: 59,691.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,639.12 : 90,906.84 = 39,816.72 : x
  2. Step 2: Convert to fraction form
    60,639.12/90,906.84 = 39,816.72/x
  3. Step 3: Cross multiply
    60,639.12x = 90,906.84 × 39,816.72
  4. Step 4: Simplify right side
    60,639.12x = 3,619,612,194.36
  5. Step 5: Solve for x
    x = 3,619,612,194.36/60,639.12
  6. Step 6: Final answer
    x = 59,691.04

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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.