Home / 90,652.27-124,999.28-61,976.60

Finding the Fourth Proportional to 90,652.27, 124,999.28 and 61,976.60

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Solution

The fourth proportional to 90,652.27, 124,999.28 and 61,976.60 is: 85,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,652.27 : 124,999.28 = 61,976.60 : x
  2. Step 2: Convert to fraction form
    90,652.27/124,999.28 = 61,976.60/x
  3. Step 3: Cross multiply
    90,652.27x = 124,999.28 × 61,976.60
  4. Step 4: Simplify right side
    90,652.27x = 7,747,030,376.85
  5. Step 5: Solve for x
    x = 7,747,030,376.85/90,652.27
  6. Step 6: Final answer
    x = 85,458.76

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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.