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Finding the Fourth Proportional to 65,336.72, 97,998.36 and 20,995.28

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Solution

The fourth proportional to 65,336.72, 97,998.36 and 20,995.28 is: 31,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,336.72 : 97,998.36 = 20,995.28 : x
  2. Step 2: Convert to fraction form
    65,336.72/97,998.36 = 20,995.28/x
  3. Step 3: Cross multiply
    65,336.72x = 97,998.36 × 20,995.28
  4. Step 4: Simplify right side
    65,336.72x = 2,057,503,007.74
  5. Step 5: Solve for x
    x = 2,057,503,007.74/65,336.72
  6. Step 6: Final answer
    x = 31,490.76

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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.