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Finding the Fourth Proportional to 65,375.74, 98,063.62 and 18,628.76

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Solution

The fourth proportional to 65,375.74, 98,063.62 and 18,628.76 is: 27,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,375.74 : 98,063.62 = 18,628.76 : x
  2. Step 2: Convert to fraction form
    65,375.74/98,063.62 = 18,628.76/x
  3. Step 3: Cross multiply
    65,375.74x = 98,063.62 × 18,628.76
  4. Step 4: Simplify right side
    65,375.74x = 1,826,803,641.71
  5. Step 5: Solve for x
    x = 1,826,803,641.71/65,375.74
  6. Step 6: Final answer
    x = 27,943.14

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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.