Home / 86,112.84-118,839.24-48,387

Finding the Fourth Proportional to 86,112.84, 118,839.24 and 48,387

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Solution

The fourth proportional to 86,112.84, 118,839.24 and 48,387 is: 66,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,112.84 : 118,839.24 = 48,387 : x
  2. Step 2: Convert to fraction form
    86,112.84/118,839.24 = 48,387/x
  3. Step 3: Cross multiply
    86,112.84x = 118,839.24 × 48,387
  4. Step 4: Simplify right side
    86,112.84x = 5,750,274,305.88
  5. Step 5: Solve for x
    x = 5,750,274,305.88/86,112.84
  6. Step 6: Final answer
    x = 66,776.04

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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.