Home / 75,275.40-112,913.31-25,390.56

Finding the Fourth Proportional to 75,275.40, 112,913.31 and 25,390.56

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Solution

The fourth proportional to 75,275.40, 112,913.31 and 25,390.56 is: 38,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.40 : 112,913.31 = 25,390.56 : x
  2. Step 2: Convert to fraction form
    75,275.40/112,913.31 = 25,390.56/x
  3. Step 3: Cross multiply
    75,275.40x = 112,913.31 × 25,390.56
  4. Step 4: Simplify right side
    75,275.40x = 2,866,932,172.35
  5. Step 5: Solve for x
    x = 2,866,932,172.35/75,275.40
  6. Step 6: Final answer
    x = 38,085.91

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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.