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Finding the Fourth Proportional to 69,863.89, 96,412.16 and 38,032.78

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Solution

The fourth proportional to 69,863.89, 96,412.16 and 38,032.78 is: 52,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,863.89 : 96,412.16 = 38,032.78 : x
  2. Step 2: Convert to fraction form
    69,863.89/96,412.16 = 38,032.78/x
  3. Step 3: Cross multiply
    69,863.89x = 96,412.16 × 38,032.78
  4. Step 4: Simplify right side
    69,863.89x = 3,666,822,280.44
  5. Step 5: Solve for x
    x = 3,666,822,280.44/69,863.89
  6. Step 6: Final answer
    x = 52,485.23

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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.