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Finding the Fourth Proportional to 69,656.64, 96,132.12 and 39,447.30

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Solution

The fourth proportional to 69,656.64, 96,132.12 and 39,447.30 is: 54,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,656.64 : 96,132.12 = 39,447.30 : x
  2. Step 2: Convert to fraction form
    69,656.64/96,132.12 = 39,447.30/x
  3. Step 3: Cross multiply
    69,656.64x = 96,132.12 × 39,447.30
  4. Step 4: Simplify right side
    69,656.64x = 3,792,152,577.28
  5. Step 5: Solve for x
    x = 3,792,152,577.28/69,656.64
  6. Step 6: Final answer
    x = 54,440.65

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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.