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Finding the Fourth Proportional to 65,166.21, 89,952.53 and 39,660.93

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Solution

The fourth proportional to 65,166.21, 89,952.53 and 39,660.93 is: 54,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,166.21 : 89,952.53 = 39,660.93 : x
  2. Step 2: Convert to fraction form
    65,166.21/89,952.53 = 39,660.93/x
  3. Step 3: Cross multiply
    65,166.21x = 89,952.53 × 39,660.93
  4. Step 4: Simplify right side
    65,166.21x = 3,567,600,797.35
  5. Step 5: Solve for x
    x = 3,567,600,797.35/65,166.21
  6. Step 6: Final answer
    x = 54,746.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.