Home / 52,464.45-78,729.48-21,299.70

Finding the Fourth Proportional to 52,464.45, 78,729.48 and 21,299.70

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Solution

The fourth proportional to 52,464.45, 78,729.48 and 21,299.70 is: 31,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,464.45 : 78,729.48 = 21,299.70 : x
  2. Step 2: Convert to fraction form
    52,464.45/78,729.48 = 21,299.70/x
  3. Step 3: Cross multiply
    52,464.45x = 78,729.48 × 21,299.70
  4. Step 4: Simplify right side
    52,464.45x = 1,676,914,305.16
  5. Step 5: Solve for x
    x = 1,676,914,305.16/52,464.45
  6. Step 6: Final answer
    x = 31,962.87

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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.