Home / 80,855.54-111,580.44-45,045.20

Finding the Fourth Proportional to 80,855.54, 111,580.44 and 45,045.20

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Solution

The fourth proportional to 80,855.54, 111,580.44 and 45,045.20 is: 62,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,855.54 : 111,580.44 = 45,045.20 : x
  2. Step 2: Convert to fraction form
    80,855.54/111,580.44 = 45,045.20/x
  3. Step 3: Cross multiply
    80,855.54x = 111,580.44 × 45,045.20
  4. Step 4: Simplify right side
    80,855.54x = 5,026,163,235.89
  5. Step 5: Solve for x
    x = 5,026,163,235.89/80,855.54
  6. Step 6: Final answer
    x = 62,162.26

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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.