Home / 84,922.91-127,418.94-42,815.10

Finding the Fourth Proportional to 84,922.91, 127,418.94 and 42,815.10

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Solution

The fourth proportional to 84,922.91, 127,418.94 and 42,815.10 is: 64,240.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,922.91 : 127,418.94 = 42,815.10 : x
  2. Step 2: Convert to fraction form
    84,922.91/127,418.94 = 42,815.10/x
  3. Step 3: Cross multiply
    84,922.91x = 127,418.94 × 42,815.10
  4. Step 4: Simplify right side
    84,922.91x = 5,455,454,657.99
  5. Step 5: Solve for x
    x = 5,455,454,657.99/84,922.91
  6. Step 6: Final answer
    x = 64,240.09

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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.