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Finding the Fourth Proportional to 65,342.55, 98,022.93 and 20,982.90

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Solution

The fourth proportional to 65,342.55, 98,022.93 and 20,982.90 is: 31,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,342.55 : 98,022.93 = 20,982.90 : x
  2. Step 2: Convert to fraction form
    65,342.55/98,022.93 = 20,982.90/x
  3. Step 3: Cross multiply
    65,342.55x = 98,022.93 × 20,982.90
  4. Step 4: Simplify right side
    65,342.55x = 2,056,805,252.46
  5. Step 5: Solve for x
    x = 2,056,805,252.46/65,342.55
  6. Step 6: Final answer
    x = 31,477.27

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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.