Home / 83,699.28-125,548.92-31,122

Finding the Fourth Proportional to 83,699.28, 125,548.92 and 31,122

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Solution

The fourth proportional to 83,699.28, 125,548.92 and 31,122 is: 46,683

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,699.28 : 125,548.92 = 31,122 : x
  2. Step 2: Convert to fraction form
    83,699.28/125,548.92 = 31,122/x
  3. Step 3: Cross multiply
    83,699.28x = 125,548.92 × 31,122
  4. Step 4: Simplify right side
    83,699.28x = 3,907,333,488.24
  5. Step 5: Solve for x
    x = 3,907,333,488.24/83,699.28
  6. Step 6: Final answer
    x = 46,683

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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.