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Finding the Fourth Proportional to 65,243.79, 97,881.01 and 20,262.85

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Solution

The fourth proportional to 65,243.79, 97,881.01 and 20,262.85 is: 30,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,243.79 : 97,881.01 = 20,262.85 : x
  2. Step 2: Convert to fraction form
    65,243.79/97,881.01 = 20,262.85/x
  3. Step 3: Cross multiply
    65,243.79x = 97,881.01 × 20,262.85
  4. Step 4: Simplify right side
    65,243.79x = 1,983,347,928.12
  5. Step 5: Solve for x
    x = 1,983,347,928.12/65,243.79
  6. Step 6: Final answer
    x = 30,399.03

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1.5x scale

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.