Home / 78,581.10-108,444.26-48,383.84

Finding the Fourth Proportional to 78,581.10, 108,444.26 and 48,383.84

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Solution

The fourth proportional to 78,581.10, 108,444.26 and 48,383.84 is: 66,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,581.10 : 108,444.26 = 48,383.84 : x
  2. Step 2: Convert to fraction form
    78,581.10/108,444.26 = 48,383.84/x
  3. Step 3: Cross multiply
    78,581.10x = 108,444.26 × 48,383.84
  4. Step 4: Simplify right side
    78,581.10x = 5,246,949,724.76
  5. Step 5: Solve for x
    x = 5,246,949,724.76/78,581.10
  6. Step 6: Final answer
    x = 66,771.15

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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.