Home / 81,863.04-122,587.20-50,603.52

Finding the Fourth Proportional to 81,863.04, 122,587.20 and 50,603.52

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Solution

The fourth proportional to 81,863.04, 122,587.20 and 50,603.52 is: 75,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.04 : 122,587.20 = 50,603.52 : x
  2. Step 2: Convert to fraction form
    81,863.04/122,587.20 = 50,603.52/x
  3. Step 3: Cross multiply
    81,863.04x = 122,587.20 × 50,603.52
  4. Step 4: Simplify right side
    81,863.04x = 6,203,343,826.94
  5. Step 5: Solve for x
    x = 6,203,343,826.94/81,863.04
  6. Step 6: Final answer
    x = 75,777.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.