Home / 90,216.11-124,496.49-49,929.89

Finding the Fourth Proportional to 90,216.11, 124,496.49 and 49,929.89

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Solution

The fourth proportional to 90,216.11, 124,496.49 and 49,929.89 is: 68,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,216.11 : 124,496.49 = 49,929.89 : x
  2. Step 2: Convert to fraction form
    90,216.11/124,496.49 = 49,929.89/x
  3. Step 3: Cross multiply
    90,216.11x = 124,496.49 × 49,929.89
  4. Step 4: Simplify right side
    90,216.11x = 6,216,096,051.09
  5. Step 5: Solve for x
    x = 6,216,096,051.09/90,216.11
  6. Step 6: Final answer
    x = 68,902.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.