Home / 84,652.12-126,866.76-47,229.80

Finding the Fourth Proportional to 84,652.12, 126,866.76 and 47,229.80

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Solution

The fourth proportional to 84,652.12, 126,866.76 and 47,229.80 is: 70,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,652.12 : 126,866.76 = 47,229.80 : x
  2. Step 2: Convert to fraction form
    84,652.12/126,866.76 = 47,229.80/x
  3. Step 3: Cross multiply
    84,652.12x = 126,866.76 × 47,229.80
  4. Step 4: Simplify right side
    84,652.12x = 5,991,891,701.45
  5. Step 5: Solve for x
    x = 5,991,891,701.45/84,652.12
  6. Step 6: Final answer
    x = 70,782.54

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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.