Home / 45,348.43-68,045.69-20,383.45

Finding the Fourth Proportional to 45,348.43, 68,045.69 and 20,383.45

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Solution

The fourth proportional to 45,348.43, 68,045.69 and 20,383.45 is: 30,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,348.43 : 68,045.69 = 20,383.45 : x
  2. Step 2: Convert to fraction form
    45,348.43/68,045.69 = 20,383.45/x
  3. Step 3: Cross multiply
    45,348.43x = 68,045.69 × 20,383.45
  4. Step 4: Simplify right side
    45,348.43x = 1,387,005,919.83
  5. Step 5: Solve for x
    x = 1,387,005,919.83/45,348.43
  6. Step 6: Final answer
    x = 30,585.53

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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.