Home / 52,436.49-78,656.10-12,993.03

Finding the Fourth Proportional to 52,436.49, 78,656.10 and 12,993.03

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Solution

The fourth proportional to 52,436.49, 78,656.10 and 12,993.03 is: 19,489.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,436.49 : 78,656.10 = 12,993.03 : x
  2. Step 2: Convert to fraction form
    52,436.49/78,656.10 = 12,993.03/x
  3. Step 3: Cross multiply
    52,436.49x = 78,656.10 × 12,993.03
  4. Step 4: Simplify right side
    52,436.49x = 1,021,981,066.98
  5. Step 5: Solve for x
    x = 1,021,981,066.98/52,436.49
  6. Step 6: Final answer
    x = 19,489.88

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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.