Home / 80,235.50-120,356.04-38,093.90

Finding the Fourth Proportional to 80,235.50, 120,356.04 and 38,093.90

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Solution

The fourth proportional to 80,235.50, 120,356.04 and 38,093.90 is: 57,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,235.50 : 120,356.04 = 38,093.90 : x
  2. Step 2: Convert to fraction form
    80,235.50/120,356.04 = 38,093.90/x
  3. Step 3: Cross multiply
    80,235.50x = 120,356.04 × 38,093.90
  4. Step 4: Simplify right side
    80,235.50x = 4,584,830,952.16
  5. Step 5: Solve for x
    x = 4,584,830,952.16/80,235.50
  6. Step 6: Final answer
    x = 57,142.17

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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.