Home / 84,836.16-117,076.32-48,543.84

Finding the Fourth Proportional to 84,836.16, 117,076.32 and 48,543.84

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Solution

The fourth proportional to 84,836.16, 117,076.32 and 48,543.84 is: 66,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,836.16 : 117,076.32 = 48,543.84 : x
  2. Step 2: Convert to fraction form
    84,836.16/117,076.32 = 48,543.84/x
  3. Step 3: Cross multiply
    84,836.16x = 117,076.32 × 48,543.84
  4. Step 4: Simplify right side
    84,836.16x = 5,683,334,145.87
  5. Step 5: Solve for x
    x = 5,683,334,145.87/84,836.16
  6. Step 6: Final answer
    x = 66,991.88

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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.