Home / 87,984.26-121,389.73-49,740.11

Finding the Fourth Proportional to 87,984.26, 121,389.73 and 49,740.11

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Solution

The fourth proportional to 87,984.26, 121,389.73 and 49,740.11 is: 68,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984.26 : 121,389.73 = 49,740.11 : x
  2. Step 2: Convert to fraction form
    87,984.26/121,389.73 = 49,740.11/x
  3. Step 3: Cross multiply
    87,984.26x = 121,389.73 × 49,740.11
  4. Step 4: Simplify right side
    87,984.26x = 6,037,937,791.77
  5. Step 5: Solve for x
    x = 6,037,937,791.77/87,984.26
  6. Step 6: Final answer
    x = 68,625.21

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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.