Home / 90,036.18-124,250.22-49,749.84

Finding the Fourth Proportional to 90,036.18, 124,250.22 and 49,749.84

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Solution

The fourth proportional to 90,036.18, 124,250.22 and 49,749.84 is: 68,654.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,036.18 : 124,250.22 = 49,749.84 : x
  2. Step 2: Convert to fraction form
    90,036.18/124,250.22 = 49,749.84/x
  3. Step 3: Cross multiply
    90,036.18x = 124,250.22 × 49,749.84
  4. Step 4: Simplify right side
    90,036.18x = 6,181,428,564.96
  5. Step 5: Solve for x
    x = 6,181,428,564.96/90,036.18
  6. Step 6: Final answer
    x = 68,654.94

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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.