Home / 90,635.09-125,079.97-62,014.78

Finding the Fourth Proportional to 90,635.09, 125,079.97 and 62,014.78

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Solution

The fourth proportional to 90,635.09, 125,079.97 and 62,014.78 is: 85,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635.09 : 125,079.97 = 62,014.78 : x
  2. Step 2: Convert to fraction form
    90,635.09/125,079.97 = 62,014.78/x
  3. Step 3: Cross multiply
    90,635.09x = 125,079.97 × 62,014.78
  4. Step 4: Simplify right side
    90,635.09x = 7,756,806,041.52
  5. Step 5: Solve for x
    x = 7,756,806,041.52/90,635.09
  6. Step 6: Final answer
    x = 85,582.82

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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.