Home / 72,877.20-109,315.80-41,690.58

Finding the Fourth Proportional to 72,877.20, 109,315.80 and 41,690.58

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Solution

The fourth proportional to 72,877.20, 109,315.80 and 41,690.58 is: 62,535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,877.20 : 109,315.80 = 41,690.58 : x
  2. Step 2: Convert to fraction form
    72,877.20/109,315.80 = 41,690.58/x
  3. Step 3: Cross multiply
    72,877.20x = 109,315.80 × 41,690.58
  4. Step 4: Simplify right side
    72,877.20x = 4,557,439,105.16
  5. Step 5: Solve for x
    x = 4,557,439,105.16/72,877.20
  6. Step 6: Final answer
    x = 62,535.87

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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.