Home / 87,987.93-121,369.57-52,153.95

Finding the Fourth Proportional to 87,987.93, 121,369.57 and 52,153.95

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Solution

The fourth proportional to 87,987.93, 121,369.57 and 52,153.95 is: 71,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,987.93 : 121,369.57 = 52,153.95 : x
  2. Step 2: Convert to fraction form
    87,987.93/121,369.57 = 52,153.95/x
  3. Step 3: Cross multiply
    87,987.93x = 121,369.57 × 52,153.95
  4. Step 4: Simplify right side
    87,987.93x = 6,329,902,485.30
  5. Step 5: Solve for x
    x = 6,329,902,485.30/87,987.93
  6. Step 6: Final answer
    x = 71,940.58

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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.