Home / 43,278.48-64,791.18-39,128.04

Finding the Fourth Proportional to 43,278.48, 64,791.18 and 39,128.04

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Solution

The fourth proportional to 43,278.48, 64,791.18 and 39,128.04 is: 58,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278.48 : 64,791.18 = 39,128.04 : x
  2. Step 2: Convert to fraction form
    43,278.48/64,791.18 = 39,128.04/x
  3. Step 3: Cross multiply
    43,278.48x = 64,791.18 × 39,128.04
  4. Step 4: Simplify right side
    43,278.48x = 2,535,151,882.69
  5. Step 5: Solve for x
    x = 2,535,151,882.69/43,278.48
  6. Step 6: Final answer
    x = 58,577.66

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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.