Home / 90,148.91-124,397.13-49,861.80

Finding the Fourth Proportional to 90,148.91, 124,397.13 and 49,861.80

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Solution

The fourth proportional to 90,148.91, 124,397.13 and 49,861.80 is: 68,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,148.91 : 124,397.13 = 49,861.80 : x
  2. Step 2: Convert to fraction form
    90,148.91/124,397.13 = 49,861.80/x
  3. Step 3: Cross multiply
    90,148.91x = 124,397.13 × 49,861.80
  4. Step 4: Simplify right side
    90,148.91x = 6,202,664,816.63
  5. Step 5: Solve for x
    x = 6,202,664,816.63/90,148.91
  6. Step 6: Final answer
    x = 68,804.66

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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.