Home / 90,029.52-124,241.67-49,742.28

Finding the Fourth Proportional to 90,029.52, 124,241.67 and 49,742.28

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Solution

The fourth proportional to 90,029.52, 124,241.67 and 49,742.28 is: 68,644.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,029.52 : 124,241.67 = 49,742.28 : x
  2. Step 2: Convert to fraction form
    90,029.52/124,241.67 = 49,742.28/x
  3. Step 3: Cross multiply
    90,029.52x = 124,241.67 × 49,742.28
  4. Step 4: Simplify right side
    90,029.52x = 6,180,063,936.81
  5. Step 5: Solve for x
    x = 6,180,063,936.81/90,029.52
  6. Step 6: Final answer
    x = 68,644.86

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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.