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Finding the Fourth Proportional to 69,952.32, 96,530.40 and 40,144.32

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Solution

The fourth proportional to 69,952.32, 96,530.40 and 40,144.32 is: 55,396.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,952.32 : 96,530.40 = 40,144.32 : x
  2. Step 2: Convert to fraction form
    69,952.32/96,530.40 = 40,144.32/x
  3. Step 3: Cross multiply
    69,952.32x = 96,530.40 × 40,144.32
  4. Step 4: Simplify right side
    69,952.32x = 3,875,147,267.33
  5. Step 5: Solve for x
    x = 3,875,147,267.33/69,952.32
  6. Step 6: Final answer
    x = 55,396.98

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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.