Home / 52,656.20-78,869.10-31,843.40

Finding the Fourth Proportional to 52,656.20, 78,869.10 and 31,843.40

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Solution

The fourth proportional to 52,656.20, 78,869.10 and 31,843.40 is: 47,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,656.20 : 78,869.10 = 31,843.40 : x
  2. Step 2: Convert to fraction form
    52,656.20/78,869.10 = 31,843.40/x
  3. Step 3: Cross multiply
    52,656.20x = 78,869.10 × 31,843.40
  4. Step 4: Simplify right side
    52,656.20x = 2,511,460,298.94
  5. Step 5: Solve for x
    x = 2,511,460,298.94/52,656.20
  6. Step 6: Final answer
    x = 47,695.43

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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.