Home / 88,425.57-121,991.16-54,423.81

Finding the Fourth Proportional to 88,425.57, 121,991.16 and 54,423.81

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Solution

The fourth proportional to 88,425.57, 121,991.16 and 54,423.81 is: 75,082.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,425.57 : 121,991.16 = 54,423.81 : x
  2. Step 2: Convert to fraction form
    88,425.57/121,991.16 = 54,423.81/x
  3. Step 3: Cross multiply
    88,425.57x = 121,991.16 × 54,423.81
  4. Step 4: Simplify right side
    88,425.57x = 6,639,223,713.52
  5. Step 5: Solve for x
    x = 6,639,223,713.52/88,425.57
  6. Step 6: Final answer
    x = 75,082.62

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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.