Home / 81,577.06-122,360.65-48,507.57

Finding the Fourth Proportional to 81,577.06, 122,360.65 and 48,507.57

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Solution

The fourth proportional to 81,577.06, 122,360.65 and 48,507.57 is: 72,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,577.06 : 122,360.65 = 48,507.57 : x
  2. Step 2: Convert to fraction form
    81,577.06/122,360.65 = 48,507.57/x
  3. Step 3: Cross multiply
    81,577.06x = 122,360.65 × 48,507.57
  4. Step 4: Simplify right side
    81,577.06x = 5,935,416,940.78
  5. Step 5: Solve for x
    x = 5,935,416,940.78/81,577.06
  6. Step 6: Final answer
    x = 72,758.41

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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.