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Finding the Fourth Proportional to 55,352.52, 83,053.08 and 20,302.20

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Solution

The fourth proportional to 55,352.52, 83,053.08 and 20,302.20 is: 30,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,352.52 : 83,053.08 = 20,302.20 : x
  2. Step 2: Convert to fraction form
    55,352.52/83,053.08 = 20,302.20/x
  3. Step 3: Cross multiply
    55,352.52x = 83,053.08 × 20,302.20
  4. Step 4: Simplify right side
    55,352.52x = 1,686,160,240.78
  5. Step 5: Solve for x
    x = 1,686,160,240.78/55,352.52
  6. Step 6: Final answer
    x = 30,462.21

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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.