Home / 88,278.11-121,835-50,043.88

Finding the Fourth Proportional to 88,278.11, 121,835 and 50,043.88

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Solution

The fourth proportional to 88,278.11, 121,835 and 50,043.88 is: 69,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,278.11 : 121,835 = 50,043.88 : x
  2. Step 2: Convert to fraction form
    88,278.11/121,835 = 50,043.88/x
  3. Step 3: Cross multiply
    88,278.11x = 121,835 × 50,043.88
  4. Step 4: Simplify right side
    88,278.11x = 6,097,096,119.80
  5. Step 5: Solve for x
    x = 6,097,096,119.80/88,278.11
  6. Step 6: Final answer
    x = 69,066.91

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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.