Home / 52,414.40-78,631.20-21,252.80

Finding the Fourth Proportional to 52,414.40, 78,631.20 and 21,252.80

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Solution

The fourth proportional to 52,414.40, 78,631.20 and 21,252.80 is: 31,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,414.40 : 78,631.20 = 21,252.80 : x
  2. Step 2: Convert to fraction form
    52,414.40/78,631.20 = 21,252.80/x
  3. Step 3: Cross multiply
    52,414.40x = 78,631.20 × 21,252.80
  4. Step 4: Simplify right side
    52,414.40x = 1,671,133,167.36
  5. Step 5: Solve for x
    x = 1,671,133,167.36/52,414.40
  6. Step 6: Final answer
    x = 31,883.09

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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.