Home / 72,687.04-109,032.62-20,096.52

Finding the Fourth Proportional to 72,687.04, 109,032.62 and 20,096.52

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Solution

The fourth proportional to 72,687.04, 109,032.62 and 20,096.52 is: 30,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,687.04 : 109,032.62 = 20,096.52 : x
  2. Step 2: Convert to fraction form
    72,687.04/109,032.62 = 20,096.52/x
  3. Step 3: Cross multiply
    72,687.04x = 109,032.62 × 20,096.52
  4. Step 4: Simplify right side
    72,687.04x = 2,191,176,228.48
  5. Step 5: Solve for x
    x = 2,191,176,228.48/72,687.04
  6. Step 6: Final answer
    x = 30,145.35

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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.