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Finding the Fourth Proportional to 69,672.56, 96,149.16 and 39,457.13

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Solution

The fourth proportional to 69,672.56, 96,149.16 and 39,457.13 is: 54,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,672.56 : 96,149.16 = 39,457.13 : x
  2. Step 2: Convert to fraction form
    69,672.56/96,149.16 = 39,457.13/x
  3. Step 3: Cross multiply
    69,672.56x = 96,149.16 × 39,457.13
  4. Step 4: Simplify right side
    69,672.56x = 3,793,769,424.77
  5. Step 5: Solve for x
    x = 3,793,769,424.77/69,672.56
  6. Step 6: Final answer
    x = 54,451.42

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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.