Home / 81,941.15-122,870.57-47,757.93

Finding the Fourth Proportional to 81,941.15, 122,870.57 and 47,757.93

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Solution

The fourth proportional to 81,941.15, 122,870.57 and 47,757.93 is: 71,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,941.15 : 122,870.57 = 47,757.93 : x
  2. Step 2: Convert to fraction form
    81,941.15/122,870.57 = 47,757.93/x
  3. Step 3: Cross multiply
    81,941.15x = 122,870.57 × 47,757.93
  4. Step 4: Simplify right side
    81,941.15x = 5,868,043,842.33
  5. Step 5: Solve for x
    x = 5,868,043,842.33/81,941.15
  6. Step 6: Final answer
    x = 71,612.91

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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.