Home / 89,691.40-134,568.14-39,806.44

Finding the Fourth Proportional to 89,691.40, 134,568.14 and 39,806.44

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Solution

The fourth proportional to 89,691.40, 134,568.14 and 39,806.44 is: 59,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,691.40 : 134,568.14 = 39,806.44 : x
  2. Step 2: Convert to fraction form
    89,691.40/134,568.14 = 39,806.44/x
  3. Step 3: Cross multiply
    89,691.40x = 134,568.14 × 39,806.44
  4. Step 4: Simplify right side
    89,691.40x = 5,356,678,055.37
  5. Step 5: Solve for x
    x = 5,356,678,055.37/89,691.40
  6. Step 6: Final answer
    x = 59,723.43

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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.