Home / 75,628.32-113,454.78-25,712.88

Finding the Fourth Proportional to 75,628.32, 113,454.78 and 25,712.88

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Solution

The fourth proportional to 75,628.32, 113,454.78 and 25,712.88 is: 38,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,628.32 : 113,454.78 = 25,712.88 : x
  2. Step 2: Convert to fraction form
    75,628.32/113,454.78 = 25,712.88/x
  3. Step 3: Cross multiply
    75,628.32x = 113,454.78 × 25,712.88
  4. Step 4: Simplify right side
    75,628.32x = 2,917,249,143.57
  5. Step 5: Solve for x
    x = 2,917,249,143.57/75,628.32
  6. Step 6: Final answer
    x = 38,573.50

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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.