Home / 71,928.12-107,948.67-49,896.51

Finding the Fourth Proportional to 71,928.12, 107,948.67 and 49,896.51

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Solution

The fourth proportional to 71,928.12, 107,948.67 and 49,896.51 is: 74,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,928.12 : 107,948.67 = 49,896.51 : x
  2. Step 2: Convert to fraction form
    71,928.12/107,948.67 = 49,896.51/x
  3. Step 3: Cross multiply
    71,928.12x = 107,948.67 × 49,896.51
  4. Step 4: Simplify right side
    71,928.12x = 5,386,261,892.14
  5. Step 5: Solve for x
    x = 5,386,261,892.14/71,928.12
  6. Step 6: Final answer
    x = 74,883.95

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1.5x scale

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.