Home / 84,429.16-126,560.22-39,977.80

Finding the Fourth Proportional to 84,429.16, 126,560.22 and 39,977.80

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Solution

The fourth proportional to 84,429.16, 126,560.22 and 39,977.80 is: 59,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,429.16 : 126,560.22 = 39,977.80 : x
  2. Step 2: Convert to fraction form
    84,429.16/126,560.22 = 39,977.80/x
  3. Step 3: Cross multiply
    84,429.16x = 126,560.22 × 39,977.80
  4. Step 4: Simplify right side
    84,429.16x = 5,059,599,163.12
  5. Step 5: Solve for x
    x = 5,059,599,163.12/84,429.16
  6. Step 6: Final answer
    x = 59,927.15

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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.