Home / 52,310.64-78,434.37-21,109.44

Finding the Fourth Proportional to 52,310.64, 78,434.37 and 21,109.44

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Solution

The fourth proportional to 52,310.64, 78,434.37 and 21,109.44 is: 31,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,310.64 : 78,434.37 = 21,109.44 : x
  2. Step 2: Convert to fraction form
    52,310.64/78,434.37 = 21,109.44/x
  3. Step 3: Cross multiply
    52,310.64x = 78,434.37 × 21,109.44
  4. Step 4: Simplify right side
    52,310.64x = 1,655,705,627.45
  5. Step 5: Solve for x
    x = 1,655,705,627.45/52,310.64
  6. Step 6: Final answer
    x = 31,651.41

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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.