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Finding the Fourth Proportional to 65,495.79, 98,243.42 and 18,748.67

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Solution

The fourth proportional to 65,495.79, 98,243.42 and 18,748.67 is: 28,122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,495.79 : 98,243.42 = 18,748.67 : x
  2. Step 2: Convert to fraction form
    65,495.79/98,243.42 = 18,748.67/x
  3. Step 3: Cross multiply
    65,495.79x = 98,243.42 × 18,748.67
  4. Step 4: Simplify right side
    65,495.79x = 1,841,932,876.29
  5. Step 5: Solve for x
    x = 1,841,932,876.29/65,495.79
  6. Step 6: Final answer
    x = 28,122.92

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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.