Home / 52,143.40-78,211.74-22,540.36

Finding the Fourth Proportional to 52,143.40, 78,211.74 and 22,540.36

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Solution

The fourth proportional to 52,143.40, 78,211.74 and 22,540.36 is: 33,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,143.40 : 78,211.74 = 22,540.36 : x
  2. Step 2: Convert to fraction form
    52,143.40/78,211.74 = 22,540.36/x
  3. Step 3: Cross multiply
    52,143.40x = 78,211.74 × 22,540.36
  4. Step 4: Simplify right side
    52,143.40x = 1,762,920,775.83
  5. Step 5: Solve for x
    x = 1,762,920,775.83/52,143.40
  6. Step 6: Final answer
    x = 33,809.09

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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.