Home / 42,945.62-64,439.04-22,169.12

Finding the Fourth Proportional to 42,945.62, 64,439.04 and 22,169.12

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Solution

The fourth proportional to 42,945.62, 64,439.04 and 22,169.12 is: 33,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,945.62 : 64,439.04 = 22,169.12 : x
  2. Step 2: Convert to fraction form
    42,945.62/64,439.04 = 22,169.12/x
  3. Step 3: Cross multiply
    42,945.62x = 64,439.04 × 22,169.12
  4. Step 4: Simplify right side
    42,945.62x = 1,428,556,810.44
  5. Step 5: Solve for x
    x = 1,428,556,810.44/42,945.62
  6. Step 6: Final answer
    x = 33,264.32

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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.