Home / 57,061.13-78,744.62-31,910.63

Finding the Fourth Proportional to 57,061.13, 78,744.62 and 31,910.63

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Solution

The fourth proportional to 57,061.13, 78,744.62 and 31,910.63 is: 44,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.13 : 78,744.62 = 31,910.63 : x
  2. Step 2: Convert to fraction form
    57,061.13/78,744.62 = 31,910.63/x
  3. Step 3: Cross multiply
    57,061.13x = 78,744.62 × 31,910.63
  4. Step 4: Simplify right side
    57,061.13x = 2,512,790,119.36
  5. Step 5: Solve for x
    x = 2,512,790,119.36/57,061.13
  6. Step 6: Final answer
    x = 44,036.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.