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Finding the Fourth Proportional to 72,042.69, 108,080.01 and 27,669.45

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Solution

The fourth proportional to 72,042.69, 108,080.01 and 27,669.45 is: 41,510.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,042.69 : 108,080.01 = 27,669.45 : x
  2. Step 2: Convert to fraction form
    72,042.69/108,080.01 = 27,669.45/x
  3. Step 3: Cross multiply
    72,042.69x = 108,080.01 × 27,669.45
  4. Step 4: Simplify right side
    72,042.69x = 2,990,514,432.69
  5. Step 5: Solve for x
    x = 2,990,514,432.69/72,042.69
  6. Step 6: Final answer
    x = 41,510.31

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1.5x scale

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.