Home / 98,988.22-136,571.61-55,963.54

Finding the Fourth Proportional to 98,988.22, 136,571.61 and 55,963.54

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Solution

The fourth proportional to 98,988.22, 136,571.61 and 55,963.54 is: 77,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,988.22 : 136,571.61 = 55,963.54 : x
  2. Step 2: Convert to fraction form
    98,988.22/136,571.61 = 55,963.54/x
  3. Step 3: Cross multiply
    98,988.22x = 136,571.61 × 55,963.54
  4. Step 4: Simplify right side
    98,988.22x = 7,643,030,759.10
  5. Step 5: Solve for x
    x = 7,643,030,759.10/98,988.22
  6. Step 6: Final answer
    x = 77,211.52

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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.