Home / 52,098.57-78,147.84-12,655.42

Finding the Fourth Proportional to 52,098.57, 78,147.84 and 12,655.42

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Solution

The fourth proportional to 52,098.57, 78,147.84 and 12,655.42 is: 18,983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,098.57 : 78,147.84 = 12,655.42 : x
  2. Step 2: Convert to fraction form
    52,098.57/78,147.84 = 12,655.42/x
  3. Step 3: Cross multiply
    52,098.57x = 78,147.84 × 12,655.42
  4. Step 4: Simplify right side
    52,098.57x = 988,993,589.38
  5. Step 5: Solve for x
    x = 988,993,589.38/52,098.57
  6. Step 6: Final answer
    x = 18,983.12

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1.5x scale

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.