Home / 84,604.07-126,906.39-21,424.16

Finding the Fourth Proportional to 84,604.07, 126,906.39 and 21,424.16

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Solution

The fourth proportional to 84,604.07, 126,906.39 and 21,424.16 is: 32,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,604.07 : 126,906.39 = 21,424.16 : x
  2. Step 2: Convert to fraction form
    84,604.07/126,906.39 = 21,424.16/x
  3. Step 3: Cross multiply
    84,604.07x = 126,906.39 × 21,424.16
  4. Step 4: Simplify right side
    84,604.07x = 2,718,862,804.38
  5. Step 5: Solve for x
    x = 2,718,862,804.38/84,604.07
  6. Step 6: Final answer
    x = 32,136.31

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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.