Home / 69,835.84-104,721.28-25,431.68

Finding the Fourth Proportional to 69,835.84, 104,721.28 and 25,431.68

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Solution

The fourth proportional to 69,835.84, 104,721.28 and 25,431.68 is: 38,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,835.84 : 104,721.28 = 25,431.68 : x
  2. Step 2: Convert to fraction form
    69,835.84/104,721.28 = 25,431.68/x
  3. Step 3: Cross multiply
    69,835.84x = 104,721.28 × 25,431.68
  4. Step 4: Simplify right side
    69,835.84x = 2,663,238,082.15
  5. Step 5: Solve for x
    x = 2,663,238,082.15/69,835.84
  6. Step 6: Final answer
    x = 38,135.69

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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.