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Finding the Fourth Proportional to 52,188.93, 72,029.93 and 30,979.89

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Solution

The fourth proportional to 52,188.93, 72,029.93 and 30,979.89 is: 42,757.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,188.93 : 72,029.93 = 30,979.89 : x
  2. Step 2: Convert to fraction form
    52,188.93/72,029.93 = 30,979.89/x
  3. Step 3: Cross multiply
    52,188.93x = 72,029.93 × 30,979.89
  4. Step 4: Simplify right side
    52,188.93x = 2,231,479,153.21
  5. Step 5: Solve for x
    x = 2,231,479,153.21/52,188.93
  6. Step 6: Final answer
    x = 42,757.71

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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.