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Finding the Fourth Proportional to 65,480.83, 98,218.51 and 18,733.70

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Solution

The fourth proportional to 65,480.83, 98,218.51 and 18,733.70 is: 28,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,480.83 : 98,218.51 = 18,733.70 : x
  2. Step 2: Convert to fraction form
    65,480.83/98,218.51 = 18,733.70/x
  3. Step 3: Cross multiply
    65,480.83x = 98,218.51 × 18,733.70
  4. Step 4: Simplify right side
    65,480.83x = 1,839,996,299.50
  5. Step 5: Solve for x
    x = 1,839,996,299.50/65,480.83
  6. Step 6: Final answer
    x = 28,099.77

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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.