Home / 89,721.60-123,808.56-51,998.24

Finding the Fourth Proportional to 89,721.60, 123,808.56 and 51,998.24

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Solution

The fourth proportional to 89,721.60, 123,808.56 and 51,998.24 is: 71,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,721.60 : 123,808.56 = 51,998.24 : x
  2. Step 2: Convert to fraction form
    89,721.60/123,808.56 = 51,998.24/x
  3. Step 3: Cross multiply
    89,721.60x = 123,808.56 × 51,998.24
  4. Step 4: Simplify right side
    89,721.60x = 6,437,827,216.93
  5. Step 5: Solve for x
    x = 6,437,827,216.93/89,721.60
  6. Step 6: Final answer
    x = 71,753.37

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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.