Home / 87,988.56-121,441.86-52,198.44

Finding the Fourth Proportional to 87,988.56, 121,441.86 and 52,198.44

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Solution

The fourth proportional to 87,988.56, 121,441.86 and 52,198.44 is: 72,044.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,988.56 : 121,441.86 = 52,198.44 : x
  2. Step 2: Convert to fraction form
    87,988.56/121,441.86 = 52,198.44/x
  3. Step 3: Cross multiply
    87,988.56x = 121,441.86 × 52,198.44
  4. Step 4: Simplify right side
    87,988.56x = 6,339,075,642.70
  5. Step 5: Solve for x
    x = 6,339,075,642.70/87,988.56
  6. Step 6: Final answer
    x = 72,044.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.