Home / 88,161.52-121,745.93-61,377.26

Finding the Fourth Proportional to 88,161.52, 121,745.93 and 61,377.26

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Solution

The fourth proportional to 88,161.52, 121,745.93 and 61,377.26 is: 84,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,161.52 : 121,745.93 = 61,377.26 : x
  2. Step 2: Convert to fraction form
    88,161.52/121,745.93 = 61,377.26/x
  3. Step 3: Cross multiply
    88,161.52x = 121,745.93 × 61,377.26
  4. Step 4: Simplify right side
    88,161.52x = 7,472,431,750.47
  5. Step 5: Solve for x
    x = 7,472,431,750.47/88,161.52
  6. Step 6: Final answer
    x = 84,758.43

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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.