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Finding the Fourth Proportional to 52,369.84, 78,553.70 and 12,927.30

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Solution

The fourth proportional to 52,369.84, 78,553.70 and 12,927.30 is: 19,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,369.84 : 78,553.70 = 12,927.30 : x
  2. Step 2: Convert to fraction form
    52,369.84/78,553.70 = 12,927.30/x
  3. Step 3: Cross multiply
    52,369.84x = 78,553.70 × 12,927.30
  4. Step 4: Simplify right side
    52,369.84x = 1,015,486,935.27
  5. Step 5: Solve for x
    x = 1,015,486,935.27/52,369.84
  6. Step 6: Final answer
    x = 19,390.68

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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.