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Finding the Fourth Proportional to 65,251.40, 97,880.30 and 34,147.40

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Solution

The fourth proportional to 65,251.40, 97,880.30 and 34,147.40 is: 51,222.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,251.40 : 97,880.30 = 34,147.40 : x
  2. Step 2: Convert to fraction form
    65,251.40/97,880.30 = 34,147.40/x
  3. Step 3: Cross multiply
    65,251.40x = 97,880.30 × 34,147.40
  4. Step 4: Simplify right side
    65,251.40x = 3,342,357,756.22
  5. Step 5: Solve for x
    x = 3,342,357,756.22/65,251.40
  6. Step 6: Final answer
    x = 51,222.77

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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.