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Finding the Fourth Proportional to 70,270.65, 96,975.81 and 38,438.82

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Solution

The fourth proportional to 70,270.65, 96,975.81 and 38,438.82 is: 53,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,270.65 : 96,975.81 = 38,438.82 : x
  2. Step 2: Convert to fraction form
    70,270.65/96,975.81 = 38,438.82/x
  3. Step 3: Cross multiply
    70,270.65x = 96,975.81 × 38,438.82
  4. Step 4: Simplify right side
    70,270.65x = 3,727,635,704.94
  5. Step 5: Solve for x
    x = 3,727,635,704.94/70,270.65
  6. Step 6: Final answer
    x = 53,046.84

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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.