Home / 75,308.78-112,884.35-25,371.62

Finding the Fourth Proportional to 75,308.78, 112,884.35 and 25,371.62

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Solution

The fourth proportional to 75,308.78, 112,884.35 and 25,371.62 is: 38,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,308.78 : 112,884.35 = 25,371.62 : x
  2. Step 2: Convert to fraction form
    75,308.78/112,884.35 = 25,371.62/x
  3. Step 3: Cross multiply
    75,308.78x = 112,884.35 × 25,371.62
  4. Step 4: Simplify right side
    75,308.78x = 2,864,058,140.87
  5. Step 5: Solve for x
    x = 2,864,058,140.87/75,308.78
  6. Step 6: Final answer
    x = 38,030.87

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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.