Home / 84,453.85-126,717.86-31,851.04

Finding the Fourth Proportional to 84,453.85, 126,717.86 and 31,851.04

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Solution

The fourth proportional to 84,453.85, 126,717.86 and 31,851.04 is: 47,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,453.85 : 126,717.86 = 31,851.04 : x
  2. Step 2: Convert to fraction form
    84,453.85/126,717.86 = 31,851.04/x
  3. Step 3: Cross multiply
    84,453.85x = 126,717.86 × 31,851.04
  4. Step 4: Simplify right side
    84,453.85x = 4,036,094,869.46
  5. Step 5: Solve for x
    x = 4,036,094,869.46/84,453.85
  6. Step 6: Final answer
    x = 47,790.54

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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.