Home / 65,532.78-98,300.25-18,785.66

Finding the Fourth Proportional to 65,532.78, 98,300.25 and 18,785.66

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Solution

The fourth proportional to 65,532.78, 98,300.25 and 18,785.66 is: 28,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,532.78 : 98,300.25 = 18,785.66 : x
  2. Step 2: Convert to fraction form
    65,532.78/98,300.25 = 18,785.66/x
  3. Step 3: Cross multiply
    65,532.78x = 98,300.25 × 18,785.66
  4. Step 4: Simplify right side
    65,532.78x = 1,846,634,582.91
  5. Step 5: Solve for x
    x = 1,846,634,582.91/65,532.78
  6. Step 6: Final answer
    x = 28,178.79

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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.