Home / 52,206.40-78,319.68-21,044.80

Finding the Fourth Proportional to 52,206.40, 78,319.68 and 21,044.80

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Solution

The fourth proportional to 52,206.40, 78,319.68 and 21,044.80 is: 31,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,206.40 : 78,319.68 = 21,044.80 : x
  2. Step 2: Convert to fraction form
    52,206.40/78,319.68 = 21,044.80/x
  3. Step 3: Cross multiply
    52,206.40x = 78,319.68 × 21,044.80
  4. Step 4: Simplify right side
    52,206.40x = 1,648,222,001.66
  5. Step 5: Solve for x
    x = 1,648,222,001.66/52,206.40
  6. Step 6: Final answer
    x = 31,571.26

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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.