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Finding the Fourth Proportional to 65,396.72, 98,070.44 and 51,520.20

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Solution

The fourth proportional to 65,396.72, 98,070.44 and 51,520.20 is: 77,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,396.72 : 98,070.44 = 51,520.20 : x
  2. Step 2: Convert to fraction form
    65,396.72/98,070.44 = 51,520.20/x
  3. Step 3: Cross multiply
    65,396.72x = 98,070.44 × 51,520.20
  4. Step 4: Simplify right side
    65,396.72x = 5,052,608,425.29
  5. Step 5: Solve for x
    x = 5,052,608,425.29/65,396.72
  6. Step 6: Final answer
    x = 77,260.89

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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.