Home / 84,042.72-125,932.72-52,812.36

Finding the Fourth Proportional to 84,042.72, 125,932.72 and 52,812.36

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Solution

The fourth proportional to 84,042.72, 125,932.72 and 52,812.36 is: 79,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.72 : 125,932.72 = 52,812.36 : x
  2. Step 2: Convert to fraction form
    84,042.72/125,932.72 = 52,812.36/x
  3. Step 3: Cross multiply
    84,042.72x = 125,932.72 × 52,812.36
  4. Step 4: Simplify right side
    84,042.72x = 6,650,804,144.42
  5. Step 5: Solve for x
    x = 6,650,804,144.42/84,042.72
  6. Step 6: Final answer
    x = 79,135.99

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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.