Home / 83,128.03-124,709.58-26,963.78

Finding the Fourth Proportional to 83,128.03, 124,709.58 and 26,963.78

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Solution

The fourth proportional to 83,128.03, 124,709.58 and 26,963.78 is: 40,451.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,128.03 : 124,709.58 = 26,963.78 : x
  2. Step 2: Convert to fraction form
    83,128.03/124,709.58 = 26,963.78/x
  3. Step 3: Cross multiply
    83,128.03x = 124,709.58 × 26,963.78
  4. Step 4: Simplify right side
    83,128.03x = 3,362,641,679.01
  5. Step 5: Solve for x
    x = 3,362,641,679.01/83,128.03
  6. Step 6: Final answer
    x = 40,451.36

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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.