Home / 45,099.20-67,648.32-13,934.72

Finding the Fourth Proportional to 45,099.20, 67,648.32 and 13,934.72

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Solution

The fourth proportional to 45,099.20, 67,648.32 and 13,934.72 is: 20,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,099.20 : 67,648.32 = 13,934.72 : x
  2. Step 2: Convert to fraction form
    45,099.20/67,648.32 = 13,934.72/x
  3. Step 3: Cross multiply
    45,099.20x = 67,648.32 × 13,934.72
  4. Step 4: Simplify right side
    45,099.20x = 942,660,397.67
  5. Step 5: Solve for x
    x = 942,660,397.67/45,099.20
  6. Step 6: Final answer
    x = 20,901.93

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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.