Home / 89,622.88-123,671.56-49,336.20

Finding the Fourth Proportional to 89,622.88, 123,671.56 and 49,336.20

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Solution

The fourth proportional to 89,622.88, 123,671.56 and 49,336.20 is: 68,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,622.88 : 123,671.56 = 49,336.20 : x
  2. Step 2: Convert to fraction form
    89,622.88/123,671.56 = 49,336.20/x
  3. Step 3: Cross multiply
    89,622.88x = 123,671.56 × 49,336.20
  4. Step 4: Simplify right side
    89,622.88x = 6,101,484,818.47
  5. Step 5: Solve for x
    x = 6,101,484,818.47/89,622.88
  6. Step 6: Final answer
    x = 68,079.54

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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.