Home / 253,380.18-380,009.79-75,839.52

Finding the Fourth Proportional to 253,380.18, 380,009.79 and 75,839.52

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Solution

The fourth proportional to 253,380.18, 380,009.79 and 75,839.52 is: 113,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,380.18 : 380,009.79 = 75,839.52 : x
  2. Step 2: Convert to fraction form
    253,380.18/380,009.79 = 75,839.52/x
  3. Step 3: Cross multiply
    253,380.18x = 380,009.79 × 75,839.52
  4. Step 4: Simplify right side
    253,380.18x = 28,819,760,068.90
  5. Step 5: Solve for x
    x = 28,819,760,068.90/253,380.18
  6. Step 6: Final answer
    x = 113,741.18

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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.