Home / 88,427.58-121,993.92-54,425.82

Finding the Fourth Proportional to 88,427.58, 121,993.92 and 54,425.82

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Solution

The fourth proportional to 88,427.58, 121,993.92 and 54,425.82 is: 75,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,427.58 : 121,993.92 = 54,425.82 : x
  2. Step 2: Convert to fraction form
    88,427.58/121,993.92 = 54,425.82/x
  3. Step 3: Cross multiply
    88,427.58x = 121,993.92 × 54,425.82
  4. Step 4: Simplify right side
    88,427.58x = 6,639,619,131.01
  5. Step 5: Solve for x
    x = 6,639,619,131.01/88,427.58
  6. Step 6: Final answer
    x = 75,085.39

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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.