Home / 53,434.20-80,208.90-30,106.20

Finding the Fourth Proportional to 53,434.20, 80,208.90 and 30,106.20

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Solution

The fourth proportional to 53,434.20, 80,208.90 and 30,106.20 is: 45,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,434.20 : 80,208.90 = 30,106.20 : x
  2. Step 2: Convert to fraction form
    53,434.20/80,208.90 = 30,106.20/x
  3. Step 3: Cross multiply
    53,434.20x = 80,208.90 × 30,106.20
  4. Step 4: Simplify right side
    53,434.20x = 2,414,785,185.18
  5. Step 5: Solve for x
    x = 2,414,785,185.18/53,434.20
  6. Step 6: Final answer
    x = 45,191.75

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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.