Home / 51,979.47-71,731.71-28,106.16

Finding the Fourth Proportional to 51,979.47, 71,731.71 and 28,106.16

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Solution

The fourth proportional to 51,979.47, 71,731.71 and 28,106.16 is: 38,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.47 : 71,731.71 = 28,106.16 : x
  2. Step 2: Convert to fraction form
    51,979.47/71,731.71 = 28,106.16/x
  3. Step 3: Cross multiply
    51,979.47x = 71,731.71 × 28,106.16
  4. Step 4: Simplify right side
    51,979.47x = 2,016,102,918.33
  5. Step 5: Solve for x
    x = 2,016,102,918.33/51,979.47
  6. Step 6: Final answer
    x = 38,786.52

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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.