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Finding the Fourth Proportional to 61,148.91, 91,711.63 and 19,029.52

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Solution

The fourth proportional to 61,148.91, 91,711.63 and 19,029.52 is: 28,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,148.91 : 91,711.63 = 19,029.52 : x
  2. Step 2: Convert to fraction form
    61,148.91/91,711.63 = 19,029.52/x
  3. Step 3: Cross multiply
    61,148.91x = 91,711.63 × 19,029.52
  4. Step 4: Simplify right side
    61,148.91x = 1,745,228,020.46
  5. Step 5: Solve for x
    x = 1,745,228,020.46/61,148.91
  6. Step 6: Final answer
    x = 28,540.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.