Home / 84,758.74-127,144.19-22,428.50

Finding the Fourth Proportional to 84,758.74, 127,144.19 and 22,428.50

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Solution

The fourth proportional to 84,758.74, 127,144.19 and 22,428.50 is: 33,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,758.74 : 127,144.19 = 22,428.50 : x
  2. Step 2: Convert to fraction form
    84,758.74/127,144.19 = 22,428.50/x
  3. Step 3: Cross multiply
    84,758.74x = 127,144.19 × 22,428.50
  4. Step 4: Simplify right side
    84,758.74x = 2,851,653,465.42
  5. Step 5: Solve for x
    x = 2,851,653,465.42/84,758.74
  6. Step 6: Final answer
    x = 33,644.36

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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.