Home / 51,244.28-76,890.16-19,643.78

Finding the Fourth Proportional to 51,244.28, 76,890.16 and 19,643.78

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Solution

The fourth proportional to 51,244.28, 76,890.16 and 19,643.78 is: 29,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,244.28 : 76,890.16 = 19,643.78 : x
  2. Step 2: Convert to fraction form
    51,244.28/76,890.16 = 19,643.78/x
  3. Step 3: Cross multiply
    51,244.28x = 76,890.16 × 19,643.78
  4. Step 4: Simplify right side
    51,244.28x = 1,510,413,603.98
  5. Step 5: Solve for x
    x = 1,510,413,603.98/51,244.28
  6. Step 6: Final answer
    x = 29,474.78

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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.