Home / 80,999.08-111,706.06-50,787.70

Finding the Fourth Proportional to 80,999.08, 111,706.06 and 50,787.70

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Solution

The fourth proportional to 80,999.08, 111,706.06 and 50,787.70 is: 70,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,999.08 : 111,706.06 = 50,787.70 : x
  2. Step 2: Convert to fraction form
    80,999.08/111,706.06 = 50,787.70/x
  3. Step 3: Cross multiply
    80,999.08x = 111,706.06 × 50,787.70
  4. Step 4: Simplify right side
    80,999.08x = 5,673,293,863.46
  5. Step 5: Solve for x
    x = 5,673,293,863.46/80,999.08
  6. Step 6: Final answer
    x = 70,041.46

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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.