Home / 81,082.50-121,592.76-38,950.56

Finding the Fourth Proportional to 81,082.50, 121,592.76 and 38,950.56

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Solution

The fourth proportional to 81,082.50, 121,592.76 and 38,950.56 is: 58,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082.50 : 121,592.76 = 38,950.56 : x
  2. Step 2: Convert to fraction form
    81,082.50/121,592.76 = 38,950.56/x
  3. Step 3: Cross multiply
    81,082.50x = 121,592.76 × 38,950.56
  4. Step 4: Simplify right side
    81,082.50x = 4,736,106,093.95
  5. Step 5: Solve for x
    x = 4,736,106,093.95/81,082.50
  6. Step 6: Final answer
    x = 58,410.95

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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.