Home / 51,979.51-71,731.33-40,660.57

Finding the Fourth Proportional to 51,979.51, 71,731.33 and 40,660.57

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Solution

The fourth proportional to 51,979.51, 71,731.33 and 40,660.57 is: 56,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.51 : 71,731.33 = 40,660.57 : x
  2. Step 2: Convert to fraction form
    51,979.51/71,731.33 = 40,660.57/x
  3. Step 3: Cross multiply
    51,979.51x = 71,731.33 × 40,660.57
  4. Step 4: Simplify right side
    51,979.51x = 2,916,636,764.66
  5. Step 5: Solve for x
    x = 2,916,636,764.66/51,979.51
  6. Step 6: Final answer
    x = 56,111.28

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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.