Home / 78,840.60-108,800.22-50,546.36

Finding the Fourth Proportional to 78,840.60, 108,800.22 and 50,546.36

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Solution

The fourth proportional to 78,840.60, 108,800.22 and 50,546.36 is: 69,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,840.60 : 108,800.22 = 50,546.36 : x
  2. Step 2: Convert to fraction form
    78,840.60/108,800.22 = 50,546.36/x
  3. Step 3: Cross multiply
    78,840.60x = 108,800.22 × 50,546.36
  4. Step 4: Simplify right side
    78,840.60x = 5,499,455,088.20
  5. Step 5: Solve for x
    x = 5,499,455,088.20/78,840.60
  6. Step 6: Final answer
    x = 69,754.10

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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.