Home / 83,006.51-124,435.79-30,403.68

Finding the Fourth Proportional to 83,006.51, 124,435.79 and 30,403.68

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Solution

The fourth proportional to 83,006.51, 124,435.79 and 30,403.68 is: 45,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,006.51 : 124,435.79 = 30,403.68 : x
  2. Step 2: Convert to fraction form
    83,006.51/124,435.79 = 30,403.68/x
  3. Step 3: Cross multiply
    83,006.51x = 124,435.79 × 30,403.68
  4. Step 4: Simplify right side
    83,006.51x = 3,783,305,787.69
  5. Step 5: Solve for x
    x = 3,783,305,787.69/83,006.51
  6. Step 6: Final answer
    x = 45,578.43

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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.