Home / 81,769.94-112,852.95-49,932.14

Finding the Fourth Proportional to 81,769.94, 112,852.95 and 49,932.14

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Solution

The fourth proportional to 81,769.94, 112,852.95 and 49,932.14 is: 68,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,769.94 : 112,852.95 = 49,932.14 : x
  2. Step 2: Convert to fraction form
    81,769.94/112,852.95 = 49,932.14/x
  3. Step 3: Cross multiply
    81,769.94x = 112,852.95 × 49,932.14
  4. Step 4: Simplify right side
    81,769.94x = 5,634,989,298.81
  5. Step 5: Solve for x
    x = 5,634,989,298.81/81,769.94
  6. Step 6: Final answer
    x = 68,912.72

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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.