Home / 88,190.11-121,698.21-49,948.75

Finding the Fourth Proportional to 88,190.11, 121,698.21 and 49,948.75

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Solution

The fourth proportional to 88,190.11, 121,698.21 and 49,948.75 is: 68,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,190.11 : 121,698.21 = 49,948.75 : x
  2. Step 2: Convert to fraction form
    88,190.11/121,698.21 = 49,948.75/x
  3. Step 3: Cross multiply
    88,190.11x = 121,698.21 × 49,948.75
  4. Step 4: Simplify right side
    88,190.11x = 6,078,673,466.74
  5. Step 5: Solve for x
    x = 6,078,673,466.74/88,190.11
  6. Step 6: Final answer
    x = 68,926.93

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Double scale
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1.5x scale

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.