Home / 81,241.91-121,818.20-25,066.69

Finding the Fourth Proportional to 81,241.91, 121,818.20 and 25,066.69

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Solution

The fourth proportional to 81,241.91, 121,818.20 and 25,066.69 is: 37,586.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,241.91 : 121,818.20 = 25,066.69 : x
  2. Step 2: Convert to fraction form
    81,241.91/121,818.20 = 25,066.69/x
  3. Step 3: Cross multiply
    81,241.91x = 121,818.20 × 25,066.69
  4. Step 4: Simplify right side
    81,241.91x = 3,053,579,055.76
  5. Step 5: Solve for x
    x = 3,053,579,055.76/81,241.91
  6. Step 6: Final answer
    x = 37,586.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.