Home / 88,262.28-121,870.68-54,286.56

Finding the Fourth Proportional to 88,262.28, 121,870.68 and 54,286.56

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Solution

The fourth proportional to 88,262.28, 121,870.68 and 54,286.56 is: 74,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,262.28 : 121,870.68 = 54,286.56 : x
  2. Step 2: Convert to fraction form
    88,262.28/121,870.68 = 54,286.56/x
  3. Step 3: Cross multiply
    88,262.28x = 121,870.68 × 54,286.56
  4. Step 4: Simplify right side
    88,262.28x = 6,615,939,982.06
  5. Step 5: Solve for x
    x = 6,615,939,982.06/88,262.28
  6. Step 6: Final answer
    x = 74,957.73

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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.