Home / 45,486.84-62,721.67-31,149.03

Finding the Fourth Proportional to 45,486.84, 62,721.67 and 31,149.03

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Solution

The fourth proportional to 45,486.84, 62,721.67 and 31,149.03 is: 42,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,486.84 : 62,721.67 = 31,149.03 : x
  2. Step 2: Convert to fraction form
    45,486.84/62,721.67 = 31,149.03/x
  3. Step 3: Cross multiply
    45,486.84x = 62,721.67 × 31,149.03
  4. Step 4: Simplify right side
    45,486.84x = 1,953,719,180.48
  5. Step 5: Solve for x
    x = 1,953,719,180.48/45,486.84
  6. Step 6: Final answer
    x = 42,951.31

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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.