Home / 83,326.31-124,990.28-20,996.81

Finding the Fourth Proportional to 83,326.31, 124,990.28 and 20,996.81

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Solution

The fourth proportional to 83,326.31, 124,990.28 and 20,996.81 is: 31,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,326.31 : 124,990.28 = 20,996.81 : x
  2. Step 2: Convert to fraction form
    83,326.31/124,990.28 = 20,996.81/x
  3. Step 3: Cross multiply
    83,326.31x = 124,990.28 × 20,996.81
  4. Step 4: Simplify right side
    83,326.31x = 2,624,397,161.01
  5. Step 5: Solve for x
    x = 2,624,397,161.01/83,326.31
  6. Step 6: Final answer
    x = 31,495.42

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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.