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Finding the Fourth Proportional to 69,143.54, 95,407.56 and 38,927.30

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Solution

The fourth proportional to 69,143.54, 95,407.56 and 38,927.30 is: 53,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,143.54 : 95,407.56 = 38,927.30 : x
  2. Step 2: Convert to fraction form
    69,143.54/95,407.56 = 38,927.30/x
  3. Step 3: Cross multiply
    69,143.54x = 95,407.56 × 38,927.30
  4. Step 4: Simplify right side
    69,143.54x = 3,713,958,710.39
  5. Step 5: Solve for x
    x = 3,713,958,710.39/69,143.54
  6. Step 6: Final answer
    x = 53,713.75

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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.