Home / 43,072.08-64,542.17-28,979.90

Finding the Fourth Proportional to 43,072.08, 64,542.17 and 28,979.90

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Solution

The fourth proportional to 43,072.08, 64,542.17 and 28,979.90 is: 43,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,072.08 : 64,542.17 = 28,979.90 : x
  2. Step 2: Convert to fraction form
    43,072.08/64,542.17 = 28,979.90/x
  3. Step 3: Cross multiply
    43,072.08x = 64,542.17 × 28,979.90
  4. Step 4: Simplify right side
    43,072.08x = 1,870,425,632.38
  5. Step 5: Solve for x
    x = 1,870,425,632.38/43,072.08
  6. Step 6: Final answer
    x = 43,425.48

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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.