Home / 81,766.95-112,883.07-49,507.08

Finding the Fourth Proportional to 81,766.95, 112,883.07 and 49,507.08

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Solution

The fourth proportional to 81,766.95, 112,883.07 and 49,507.08 is: 68,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,766.95 : 112,883.07 = 49,507.08 : x
  2. Step 2: Convert to fraction form
    81,766.95/112,883.07 = 49,507.08/x
  3. Step 3: Cross multiply
    81,766.95x = 112,883.07 × 49,507.08
  4. Step 4: Simplify right side
    81,766.95x = 5,588,511,177.14
  5. Step 5: Solve for x
    x = 5,588,511,177.14/81,766.95
  6. Step 6: Final answer
    x = 68,346.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.