Home / 88,103.88-121,537.39-54,120.03

Finding the Fourth Proportional to 88,103.88, 121,537.39 and 54,120.03

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Solution

The fourth proportional to 88,103.88, 121,537.39 and 54,120.03 is: 74,657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,103.88 : 121,537.39 = 54,120.03 : x
  2. Step 2: Convert to fraction form
    88,103.88/121,537.39 = 54,120.03/x
  3. Step 3: Cross multiply
    88,103.88x = 121,537.39 × 54,120.03
  4. Step 4: Simplify right side
    88,103.88x = 6,577,607,192.92
  5. Step 5: Solve for x
    x = 6,577,607,192.92/88,103.88
  6. Step 6: Final answer
    x = 74,657.41

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1.5x scale

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.