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Finding the Fourth Proportional to 55,223.80, 82,795.20 and 21,927.40

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Solution

The fourth proportional to 55,223.80, 82,795.20 and 21,927.40 is: 32,875.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,223.80 : 82,795.20 = 21,927.40 : x
  2. Step 2: Convert to fraction form
    55,223.80/82,795.20 = 21,927.40/x
  3. Step 3: Cross multiply
    55,223.80x = 82,795.20 × 21,927.40
  4. Step 4: Simplify right side
    55,223.80x = 1,815,483,468.48
  5. Step 5: Solve for x
    x = 1,815,483,468.48/55,223.80
  6. Step 6: Final answer
    x = 32,875.02

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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.