Home / 65,189.04-97,787.34-18,438

Finding the Fourth Proportional to 65,189.04, 97,787.34 and 18,438

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Solution

The fourth proportional to 65,189.04, 97,787.34 and 18,438 is: 27,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,189.04 : 97,787.34 = 18,438 : x
  2. Step 2: Convert to fraction form
    65,189.04/97,787.34 = 18,438/x
  3. Step 3: Cross multiply
    65,189.04x = 97,787.34 × 18,438
  4. Step 4: Simplify right side
    65,189.04x = 1,803,002,974.92
  5. Step 5: Solve for x
    x = 1,803,002,974.92/65,189.04
  6. Step 6: Final answer
    x = 27,658.07

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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.