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Finding the Fourth Proportional to 65,160.72, 97,734.60 and 30,099.87

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Solution

The fourth proportional to 65,160.72, 97,734.60 and 30,099.87 is: 45,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,160.72 : 97,734.60 = 30,099.87 : x
  2. Step 2: Convert to fraction form
    65,160.72/97,734.60 = 30,099.87/x
  3. Step 3: Cross multiply
    65,160.72x = 97,734.60 × 30,099.87
  4. Step 4: Simplify right side
    65,160.72x = 2,941,798,754.50
  5. Step 5: Solve for x
    x = 2,941,798,754.50/65,160.72
  6. Step 6: Final answer
    x = 45,146.81

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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.