Home / 90,100.41-124,336.13-49,815.87

Finding the Fourth Proportional to 90,100.41, 124,336.13 and 49,815.87

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Solution

The fourth proportional to 90,100.41, 124,336.13 and 49,815.87 is: 68,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.41 : 124,336.13 = 49,815.87 : x
  2. Step 2: Convert to fraction form
    90,100.41/124,336.13 = 49,815.87/x
  3. Step 3: Cross multiply
    90,100.41x = 124,336.13 × 49,815.87
  4. Step 4: Simplify right side
    90,100.41x = 6,193,912,239.30
  5. Step 5: Solve for x
    x = 6,193,912,239.30/90,100.41
  6. Step 6: Final answer
    x = 68,744.55

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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.