Home / 84,427.96-126,637.46-31,834.04

Finding the Fourth Proportional to 84,427.96, 126,637.46 and 31,834.04

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Solution

The fourth proportional to 84,427.96, 126,637.46 and 31,834.04 is: 47,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,427.96 : 126,637.46 = 31,834.04 : x
  2. Step 2: Convert to fraction form
    84,427.96/126,637.46 = 31,834.04/x
  3. Step 3: Cross multiply
    84,427.96x = 126,637.46 × 31,834.04
  4. Step 4: Simplify right side
    84,427.96x = 4,031,381,967.14
  5. Step 5: Solve for x
    x = 4,031,381,967.14/84,427.96
  6. Step 6: Final answer
    x = 47,749.37

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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.