Home / 49,117.36-67,790.15-28,979.23

Finding the Fourth Proportional to 49,117.36, 67,790.15 and 28,979.23

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Solution

The fourth proportional to 49,117.36, 67,790.15 and 28,979.23 is: 39,996.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,117.36 : 67,790.15 = 28,979.23 : x
  2. Step 2: Convert to fraction form
    49,117.36/67,790.15 = 28,979.23/x
  3. Step 3: Cross multiply
    49,117.36x = 67,790.15 × 28,979.23
  4. Step 4: Simplify right side
    49,117.36x = 1,964,506,348.58
  5. Step 5: Solve for x
    x = 1,964,506,348.58/49,117.36
  6. Step 6: Final answer
    x = 39,996.17

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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.