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Finding the Fourth Proportional to 65,829.81, 98,754.93 and 21,446.22

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Solution

The fourth proportional to 65,829.81, 98,754.93 and 21,446.22 is: 32,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,829.81 : 98,754.93 = 21,446.22 : x
  2. Step 2: Convert to fraction form
    65,829.81/98,754.93 = 21,446.22/x
  3. Step 3: Cross multiply
    65,829.81x = 98,754.93 × 21,446.22
  4. Step 4: Simplify right side
    65,829.81x = 2,117,919,954.86
  5. Step 5: Solve for x
    x = 2,117,919,954.86/65,829.81
  6. Step 6: Final answer
    x = 32,172.66

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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.