Home / 90,109.32-124,349.94-49,824.06

Finding the Fourth Proportional to 90,109.32, 124,349.94 and 49,824.06

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Solution

The fourth proportional to 90,109.32, 124,349.94 and 49,824.06 is: 68,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,109.32 : 124,349.94 = 49,824.06 : x
  2. Step 2: Convert to fraction form
    90,109.32/124,349.94 = 49,824.06/x
  3. Step 3: Cross multiply
    90,109.32x = 124,349.94 × 49,824.06
  4. Step 4: Simplify right side
    90,109.32x = 6,195,618,871.56
  5. Step 5: Solve for x
    x = 6,195,618,871.56/90,109.32
  6. Step 6: Final answer
    x = 68,756.69

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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.