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Finding the Fourth Proportional to 65,697.42, 98,562.54 and 18,950.30

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Solution

The fourth proportional to 65,697.42, 98,562.54 and 18,950.30 is: 28,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,697.42 : 98,562.54 = 18,950.30 : x
  2. Step 2: Convert to fraction form
    65,697.42/98,562.54 = 18,950.30/x
  3. Step 3: Cross multiply
    65,697.42x = 98,562.54 × 18,950.30
  4. Step 4: Simplify right side
    65,697.42x = 1,867,789,701.76
  5. Step 5: Solve for x
    x = 1,867,789,701.76/65,697.42
  6. Step 6: Final answer
    x = 28,430.18

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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.