Home / 73,103.12-109,688.04-39,773.20

Finding the Fourth Proportional to 73,103.12, 109,688.04 and 39,773.20

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Solution

The fourth proportional to 73,103.12, 109,688.04 and 39,773.20 is: 59,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,103.12 : 109,688.04 = 39,773.20 : x
  2. Step 2: Convert to fraction form
    73,103.12/109,688.04 = 39,773.20/x
  3. Step 3: Cross multiply
    73,103.12x = 109,688.04 × 39,773.20
  4. Step 4: Simplify right side
    73,103.12x = 4,362,644,352.53
  5. Step 5: Solve for x
    x = 4,362,644,352.53/73,103.12
  6. Step 6: Final answer
    x = 59,677.95

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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.