Home / 81,617.32-112,628.10-48,076.84

Finding the Fourth Proportional to 81,617.32, 112,628.10 and 48,076.84

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Solution

The fourth proportional to 81,617.32, 112,628.10 and 48,076.84 is: 66,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,617.32 : 112,628.10 = 48,076.84 : x
  2. Step 2: Convert to fraction form
    81,617.32/112,628.10 = 48,076.84/x
  3. Step 3: Cross multiply
    81,617.32x = 112,628.10 × 48,076.84
  4. Step 4: Simplify right side
    81,617.32x = 5,414,803,143.20
  5. Step 5: Solve for x
    x = 5,414,803,143.20/81,617.32
  6. Step 6: Final answer
    x = 66,343.80

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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.