Home / 90,103.43-124,340.27-49,818.89

Finding the Fourth Proportional to 90,103.43, 124,340.27 and 49,818.89

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Solution

The fourth proportional to 90,103.43, 124,340.27 and 49,818.89 is: 68,748.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,103.43 : 124,340.27 = 49,818.89 : x
  2. Step 2: Convert to fraction form
    90,103.43/124,340.27 = 49,818.89/x
  3. Step 3: Cross multiply
    90,103.43x = 124,340.27 × 49,818.89
  4. Step 4: Simplify right side
    90,103.43x = 6,194,494,295.46
  5. Step 5: Solve for x
    x = 6,194,494,295.46/90,103.43
  6. Step 6: Final answer
    x = 68,748.70

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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.