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Finding the Fourth Proportional to 65,808.10, 98,706.03 and 18,427.48

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Solution

The fourth proportional to 65,808.10, 98,706.03 and 18,427.48 is: 27,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,808.10 : 98,706.03 = 18,427.48 : x
  2. Step 2: Convert to fraction form
    65,808.10/98,706.03 = 18,427.48/x
  3. Step 3: Cross multiply
    65,808.10x = 98,706.03 × 18,427.48
  4. Step 4: Simplify right side
    65,808.10x = 1,818,903,393.70
  5. Step 5: Solve for x
    x = 1,818,903,393.70/65,808.10
  6. Step 6: Final answer
    x = 27,639.51

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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.