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Finding the Fourth Proportional to 65,342.25, 98,013.38 and 28,406.25

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Solution

The fourth proportional to 65,342.25, 98,013.38 and 28,406.25 is: 42,609.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,342.25 : 98,013.38 = 28,406.25 : x
  2. Step 2: Convert to fraction form
    65,342.25/98,013.38 = 28,406.25/x
  3. Step 3: Cross multiply
    65,342.25x = 98,013.38 × 28,406.25
  4. Step 4: Simplify right side
    65,342.25x = 2,784,192,433.59
  5. Step 5: Solve for x
    x = 2,784,192,433.59/65,342.25
  6. Step 6: Final answer
    x = 42,609.38

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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.