Home / 45,229.95-67,851.12-15,639.84

Finding the Fourth Proportional to 45,229.95, 67,851.12 and 15,639.84

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Solution

The fourth proportional to 45,229.95, 67,851.12 and 15,639.84 is: 23,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,229.95 : 67,851.12 = 15,639.84 : x
  2. Step 2: Convert to fraction form
    45,229.95/67,851.12 = 15,639.84/x
  3. Step 3: Cross multiply
    45,229.95x = 67,851.12 × 15,639.84
  4. Step 4: Simplify right side
    45,229.95x = 1,061,180,660.62
  5. Step 5: Solve for x
    x = 1,061,180,660.62/45,229.95
  6. Step 6: Final answer
    x = 23,461.90

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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.