Home / 84,424.78-126,654.11-31,117.03

Finding the Fourth Proportional to 84,424.78, 126,654.11 and 31,117.03

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Solution

The fourth proportional to 84,424.78, 126,654.11 and 31,117.03 is: 46,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,424.78 : 126,654.11 = 31,117.03 : x
  2. Step 2: Convert to fraction form
    84,424.78/126,654.11 = 31,117.03/x
  3. Step 3: Cross multiply
    84,424.78x = 126,654.11 × 31,117.03
  4. Step 4: Simplify right side
    84,424.78x = 3,941,099,560.00
  5. Step 5: Solve for x
    x = 3,941,099,560.00/84,424.78
  6. Step 6: Final answer
    x = 46,681.79

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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.