Home / 48,636.72-67,120.02-29,520

Finding the Fourth Proportional to 48,636.72, 67,120.02 and 29,520

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Solution

The fourth proportional to 48,636.72, 67,120.02 and 29,520 is: 40,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,636.72 : 67,120.02 = 29,520 : x
  2. Step 2: Convert to fraction form
    48,636.72/67,120.02 = 29,520/x
  3. Step 3: Cross multiply
    48,636.72x = 67,120.02 × 29,520
  4. Step 4: Simplify right side
    48,636.72x = 1,981,382,990.40
  5. Step 5: Solve for x
    x = 1,981,382,990.40/48,636.72
  6. Step 6: Final answer
    x = 40,738.42

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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.