Home / 84,613.84-126,782.30-51,232.80

Finding the Fourth Proportional to 84,613.84, 126,782.30 and 51,232.80

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Solution

The fourth proportional to 84,613.84, 126,782.30 and 51,232.80 is: 76,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,613.84 : 126,782.30 = 51,232.80 : x
  2. Step 2: Convert to fraction form
    84,613.84/126,782.30 = 51,232.80/x
  3. Step 3: Cross multiply
    84,613.84x = 126,782.30 × 51,232.80
  4. Step 4: Simplify right side
    84,613.84x = 6,495,412,219.44
  5. Step 5: Solve for x
    x = 6,495,412,219.44/84,613.84
  6. Step 6: Final answer
    x = 76,765.36

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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.