Home / 84,252.96-126,360-31,667.76

Finding the Fourth Proportional to 84,252.96, 126,360 and 31,667.76

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Solution

The fourth proportional to 84,252.96, 126,360 and 31,667.76 is: 47,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,252.96 : 126,360 = 31,667.76 : x
  2. Step 2: Convert to fraction form
    84,252.96/126,360 = 31,667.76/x
  3. Step 3: Cross multiply
    84,252.96x = 126,360 × 31,667.76
  4. Step 4: Simplify right side
    84,252.96x = 4,001,538,153.60
  5. Step 5: Solve for x
    x = 4,001,538,153.60/84,252.96
  6. Step 6: Final answer
    x = 47,494.33

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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.