Home / 80,380.02-120,545.40-55,579.44

Finding the Fourth Proportional to 80,380.02, 120,545.40 and 55,579.44

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Solution

The fourth proportional to 80,380.02, 120,545.40 and 55,579.44 is: 83,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,380.02 : 120,545.40 = 55,579.44 : x
  2. Step 2: Convert to fraction form
    80,380.02/120,545.40 = 55,579.44/x
  3. Step 3: Cross multiply
    80,380.02x = 120,545.40 × 55,579.44
  4. Step 4: Simplify right side
    80,380.02x = 6,699,845,826.58
  5. Step 5: Solve for x
    x = 6,699,845,826.58/80,380.02
  6. Step 6: Final answer
    x = 83,352.13

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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.