Home / 84,220.56-126,360-56,252.88

Finding the Fourth Proportional to 84,220.56, 126,360 and 56,252.88

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Solution

The fourth proportional to 84,220.56, 126,360 and 56,252.88 is: 84,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,220.56 : 126,360 = 56,252.88 : x
  2. Step 2: Convert to fraction form
    84,220.56/126,360 = 56,252.88/x
  3. Step 3: Cross multiply
    84,220.56x = 126,360 × 56,252.88
  4. Step 4: Simplify right side
    84,220.56x = 7,108,113,916.80
  5. Step 5: Solve for x
    x = 7,108,113,916.80/84,220.56
  6. Step 6: Final answer
    x = 84,398.80

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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.