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Finding the Fourth Proportional to 55,204.66, 82,820.79 and 21,913.72

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Solution

The fourth proportional to 55,204.66, 82,820.79 and 21,913.72 is: 32,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,204.66 : 82,820.79 = 21,913.72 : x
  2. Step 2: Convert to fraction form
    55,204.66/82,820.79 = 21,913.72/x
  3. Step 3: Cross multiply
    55,204.66x = 82,820.79 × 21,913.72
  4. Step 4: Simplify right side
    55,204.66x = 1,814,911,602.24
  5. Step 5: Solve for x
    x = 1,814,911,602.24/55,204.66
  6. Step 6: Final answer
    x = 32,876.06

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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.