Home / 90,102.47-124,336.38-49,813.88

Finding the Fourth Proportional to 90,102.47, 124,336.38 and 49,813.88

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Solution

The fourth proportional to 90,102.47, 124,336.38 and 49,813.88 is: 68,740.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102.47 : 124,336.38 = 49,813.88 : x
  2. Step 2: Convert to fraction form
    90,102.47/124,336.38 = 49,813.88/x
  3. Step 3: Cross multiply
    90,102.47x = 124,336.38 × 49,813.88
  4. Step 4: Simplify right side
    90,102.47x = 6,193,676,891.27
  5. Step 5: Solve for x
    x = 6,193,676,891.27/90,102.47
  6. Step 6: Final answer
    x = 68,740.37

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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.