Home / 85,355.57-117,798.51-47,121.97

Finding the Fourth Proportional to 85,355.57, 117,798.51 and 47,121.97

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Solution

The fourth proportional to 85,355.57, 117,798.51 and 47,121.97 is: 65,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,355.57 : 117,798.51 = 47,121.97 : x
  2. Step 2: Convert to fraction form
    85,355.57/117,798.51 = 47,121.97/x
  3. Step 3: Cross multiply
    85,355.57x = 117,798.51 × 47,121.97
  4. Step 4: Simplify right side
    85,355.57x = 5,550,897,618.65
  5. Step 5: Solve for x
    x = 5,550,897,618.65/85,355.57
  6. Step 6: Final answer
    x = 65,032.63

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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.