Home / 89,029.25-122,861.90-55,036.89

Finding the Fourth Proportional to 89,029.25, 122,861.90 and 55,036.89

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Solution

The fourth proportional to 89,029.25, 122,861.90 and 55,036.89 is: 75,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,029.25 : 122,861.90 = 55,036.89 : x
  2. Step 2: Convert to fraction form
    89,029.25/122,861.90 = 55,036.89/x
  3. Step 3: Cross multiply
    89,029.25x = 122,861.90 × 55,036.89
  4. Step 4: Simplify right side
    89,029.25x = 6,761,937,013.08
  5. Step 5: Solve for x
    x = 6,761,937,013.08/89,029.25
  6. Step 6: Final answer
    x = 75,951.86

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1.5x scale

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.