Home / 80,840.03-111,557.05-45,027.90

Finding the Fourth Proportional to 80,840.03, 111,557.05 and 45,027.90

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Solution

The fourth proportional to 80,840.03, 111,557.05 and 45,027.90 is: 62,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,840.03 : 111,557.05 = 45,027.90 : x
  2. Step 2: Convert to fraction form
    80,840.03/111,557.05 = 45,027.90/x
  3. Step 3: Cross multiply
    80,840.03x = 111,557.05 × 45,027.90
  4. Step 4: Simplify right side
    80,840.03x = 5,023,179,579.13
  5. Step 5: Solve for x
    x = 5,023,179,579.13/80,840.03
  6. Step 6: Final answer
    x = 62,137.28

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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.