Home / 84,669.54-126,755.16-56,519.78

Finding the Fourth Proportional to 84,669.54, 126,755.16 and 56,519.78

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Solution

The fourth proportional to 84,669.54, 126,755.16 and 56,519.78 is: 84,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,669.54 : 126,755.16 = 56,519.78 : x
  2. Step 2: Convert to fraction form
    84,669.54/126,755.16 = 56,519.78/x
  3. Step 3: Cross multiply
    84,669.54x = 126,755.16 × 56,519.78
  4. Step 4: Simplify right side
    84,669.54x = 7,164,172,911.34
  5. Step 5: Solve for x
    x = 7,164,172,911.34/84,669.54
  6. Step 6: Final answer
    x = 84,613.35

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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.