Home / 78,229.10-108,015.36-48,055.79

Finding the Fourth Proportional to 78,229.10, 108,015.36 and 48,055.79

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Solution

The fourth proportional to 78,229.10, 108,015.36 and 48,055.79 is: 66,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,229.10 : 108,015.36 = 48,055.79 : x
  2. Step 2: Convert to fraction form
    78,229.10/108,015.36 = 48,055.79/x
  3. Step 3: Cross multiply
    78,229.10x = 108,015.36 × 48,055.79
  4. Step 4: Simplify right side
    78,229.10x = 5,190,763,546.76
  5. Step 5: Solve for x
    x = 5,190,763,546.76/78,229.10
  6. Step 6: Final answer
    x = 66,353.36

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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.