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Finding the Fourth Proportional to 69,776.10, 96,299.13 and 39,157.63

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Solution

The fourth proportional to 69,776.10, 96,299.13 and 39,157.63 is: 54,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,776.10 : 96,299.13 = 39,157.63 : x
  2. Step 2: Convert to fraction form
    69,776.10/96,299.13 = 39,157.63/x
  3. Step 3: Cross multiply
    69,776.10x = 96,299.13 × 39,157.63
  4. Step 4: Simplify right side
    69,776.10x = 3,770,845,701.86
  5. Step 5: Solve for x
    x = 3,770,845,701.86/69,776.10
  6. Step 6: Final answer
    x = 54,042.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.