Home / 81,845.22-112,947.57-48,311.22

Finding the Fourth Proportional to 81,845.22, 112,947.57 and 48,311.22

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Solution

The fourth proportional to 81,845.22, 112,947.57 and 48,311.22 is: 66,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,845.22 : 112,947.57 = 48,311.22 : x
  2. Step 2: Convert to fraction form
    81,845.22/112,947.57 = 48,311.22/x
  3. Step 3: Cross multiply
    81,845.22x = 112,947.57 × 48,311.22
  4. Step 4: Simplify right side
    81,845.22x = 5,456,634,902.74
  5. Step 5: Solve for x
    x = 5,456,634,902.74/81,845.22
  6. Step 6: Final answer
    x = 66,670.17

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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.