Home / 88,427.57-121,993.92-54,425.81

Finding the Fourth Proportional to 88,427.57, 121,993.92 and 54,425.81

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Solution

The fourth proportional to 88,427.57, 121,993.92 and 54,425.81 is: 75,085.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,427.57 : 121,993.92 = 54,425.81 : x
  2. Step 2: Convert to fraction form
    88,427.57/121,993.92 = 54,425.81/x
  3. Step 3: Cross multiply
    88,427.57x = 121,993.92 × 54,425.81
  4. Step 4: Simplify right side
    88,427.57x = 6,639,617,911.08
  5. Step 5: Solve for x
    x = 6,639,617,911.08/88,427.57
  6. Step 6: Final answer
    x = 75,085.38

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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.