Home / 72,972.24-109,426.77-30,871.14

Finding the Fourth Proportional to 72,972.24, 109,426.77 and 30,871.14

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Solution

The fourth proportional to 72,972.24, 109,426.77 and 30,871.14 is: 46,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,972.24 : 109,426.77 = 30,871.14 : x
  2. Step 2: Convert to fraction form
    72,972.24/109,426.77 = 30,871.14/x
  3. Step 3: Cross multiply
    72,972.24x = 109,426.77 × 30,871.14
  4. Step 4: Simplify right side
    72,972.24x = 3,378,129,136.42
  5. Step 5: Solve for x
    x = 3,378,129,136.42/72,972.24
  6. Step 6: Final answer
    x = 46,293.35

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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.