Home / 42,751.44-64,156.32-25,668.72

Finding the Fourth Proportional to 42,751.44, 64,156.32 and 25,668.72

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Solution

The fourth proportional to 42,751.44, 64,156.32 and 25,668.72 is: 38,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,751.44 : 64,156.32 = 25,668.72 : x
  2. Step 2: Convert to fraction form
    42,751.44/64,156.32 = 25,668.72/x
  3. Step 3: Cross multiply
    42,751.44x = 64,156.32 × 25,668.72
  4. Step 4: Simplify right side
    42,751.44x = 1,646,810,614.31
  5. Step 5: Solve for x
    x = 1,646,810,614.31/42,751.44
  6. Step 6: Final answer
    x = 38,520.59

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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.