Home / 89,519.80-123,527.64-51,787

Finding the Fourth Proportional to 89,519.80, 123,527.64 and 51,787

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Solution

The fourth proportional to 89,519.80, 123,527.64 and 51,787 is: 71,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,519.80 : 123,527.64 = 51,787 : x
  2. Step 2: Convert to fraction form
    89,519.80/123,527.64 = 51,787/x
  3. Step 3: Cross multiply
    89,519.80x = 123,527.64 × 51,787
  4. Step 4: Simplify right side
    89,519.80x = 6,397,125,892.68
  5. Step 5: Solve for x
    x = 6,397,125,892.68/89,519.80
  6. Step 6: Final answer
    x = 71,460.46

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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.