Home / 52,658.07-78,997.70-19,378.31

Finding the Fourth Proportional to 52,658.07, 78,997.70 and 19,378.31

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Solution

The fourth proportional to 52,658.07, 78,997.70 and 19,378.31 is: 29,071.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,658.07 : 78,997.70 = 19,378.31 : x
  2. Step 2: Convert to fraction form
    52,658.07/78,997.70 = 19,378.31/x
  3. Step 3: Cross multiply
    52,658.07x = 78,997.70 × 19,378.31
  4. Step 4: Simplify right side
    52,658.07x = 1,530,842,020.49
  5. Step 5: Solve for x
    x = 1,530,842,020.49/52,658.07
  6. Step 6: Final answer
    x = 29,071.37

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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.