Home / 52,122.84-78,184.24-12,679.96

Finding the Fourth Proportional to 52,122.84, 78,184.24 and 12,679.96

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Solution

The fourth proportional to 52,122.84, 78,184.24 and 12,679.96 is: 19,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,122.84 : 78,184.24 = 12,679.96 : x
  2. Step 2: Convert to fraction form
    52,122.84/78,184.24 = 12,679.96/x
  3. Step 3: Cross multiply
    52,122.84x = 78,184.24 × 12,679.96
  4. Step 4: Simplify right side
    52,122.84x = 991,373,035.83
  5. Step 5: Solve for x
    x = 991,373,035.83/52,122.84
  6. Step 6: Final answer
    x = 19,019.94

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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.