Home / 55,503.20-83,260.27-20,434.66

Finding the Fourth Proportional to 55,503.20, 83,260.27 and 20,434.66

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Solution

The fourth proportional to 55,503.20, 83,260.27 and 20,434.66 is: 30,654.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,503.20 : 83,260.27 = 20,434.66 : x
  2. Step 2: Convert to fraction form
    55,503.20/83,260.27 = 20,434.66/x
  3. Step 3: Cross multiply
    55,503.20x = 83,260.27 × 20,434.66
  4. Step 4: Simplify right side
    55,503.20x = 1,701,395,308.96
  5. Step 5: Solve for x
    x = 1,701,395,308.96/55,503.20
  6. Step 6: Final answer
    x = 30,654.00

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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.