Home / 89,566.56-123,619.52-51,351.78

Finding the Fourth Proportional to 89,566.56, 123,619.52 and 51,351.78

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Solution

The fourth proportional to 89,566.56, 123,619.52 and 51,351.78 is: 70,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,566.56 : 123,619.52 = 51,351.78 : x
  2. Step 2: Convert to fraction form
    89,566.56/123,619.52 = 51,351.78/x
  3. Step 3: Cross multiply
    89,566.56x = 123,619.52 × 51,351.78
  4. Step 4: Simplify right side
    89,566.56x = 6,348,082,394.75
  5. Step 5: Solve for x
    x = 6,348,082,394.75/89,566.56
  6. Step 6: Final answer
    x = 70,875.59

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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.