Home / 89,929.12-124,102.21-49,642.91

Finding the Fourth Proportional to 89,929.12, 124,102.21 and 49,642.91

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Solution

The fourth proportional to 89,929.12, 124,102.21 and 49,642.91 is: 68,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,929.12 : 124,102.21 = 49,642.91 : x
  2. Step 2: Convert to fraction form
    89,929.12/124,102.21 = 49,642.91/x
  3. Step 3: Cross multiply
    89,929.12x = 124,102.21 × 49,642.91
  4. Step 4: Simplify right side
    89,929.12x = 6,160,794,562.60
  5. Step 5: Solve for x
    x = 6,160,794,562.60/89,929.12
  6. Step 6: Final answer
    x = 68,507.23

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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.