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Finding the Fourth Proportional to 65,321.98, 97,999.42 and 18,574.84

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Solution

The fourth proportional to 65,321.98, 97,999.42 and 18,574.84 is: 27,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,321.98 : 97,999.42 = 18,574.84 : x
  2. Step 2: Convert to fraction form
    65,321.98/97,999.42 = 18,574.84/x
  3. Step 3: Cross multiply
    65,321.98x = 97,999.42 × 18,574.84
  4. Step 4: Simplify right side
    65,321.98x = 1,820,323,546.59
  5. Step 5: Solve for x
    x = 1,820,323,546.59/65,321.98
  6. Step 6: Final answer
    x = 27,866.94

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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.