Home / 89,820.80-134,694.14-30,661.24

Finding the Fourth Proportional to 89,820.80, 134,694.14 and 30,661.24

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Solution

The fourth proportional to 89,820.80, 134,694.14 and 30,661.24 is: 45,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820.80 : 134,694.14 = 30,661.24 : x
  2. Step 2: Convert to fraction form
    89,820.80/134,694.14 = 30,661.24/x
  3. Step 3: Cross multiply
    89,820.80x = 134,694.14 × 30,661.24
  4. Step 4: Simplify right side
    89,820.80x = 4,129,888,863.09
  5. Step 5: Solve for x
    x = 4,129,888,863.09/89,820.80
  6. Step 6: Final answer
    x = 45,979.20

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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.