Home / 75,701.47-113,569.79-25,782

Finding the Fourth Proportional to 75,701.47, 113,569.79 and 25,782

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Solution

The fourth proportional to 75,701.47, 113,569.79 and 25,782 is: 38,678.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,701.47 : 113,569.79 = 25,782 : x
  2. Step 2: Convert to fraction form
    75,701.47/113,569.79 = 25,782/x
  3. Step 3: Cross multiply
    75,701.47x = 113,569.79 × 25,782
  4. Step 4: Simplify right side
    75,701.47x = 2,928,056,325.78
  5. Step 5: Solve for x
    x = 2,928,056,325.78/75,701.47
  6. Step 6: Final answer
    x = 38,678.99

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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.