Home / 89,628.87-134,526.38-45,286.78

Finding the Fourth Proportional to 89,628.87, 134,526.38 and 45,286.78

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Solution

The fourth proportional to 89,628.87, 134,526.38 and 45,286.78 is: 67,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,628.87 : 134,526.38 = 45,286.78 : x
  2. Step 2: Convert to fraction form
    89,628.87/134,526.38 = 45,286.78/x
  3. Step 3: Cross multiply
    89,628.87x = 134,526.38 × 45,286.78
  4. Step 4: Simplify right side
    89,628.87x = 6,092,266,575.26
  5. Step 5: Solve for x
    x = 6,092,266,575.26/89,628.87
  6. Step 6: Final answer
    x = 67,972.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.