Home / 85,066.13-117,391.32-49,258.05

Finding the Fourth Proportional to 85,066.13, 117,391.32 and 49,258.05

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Solution

The fourth proportional to 85,066.13, 117,391.32 and 49,258.05 is: 67,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,066.13 : 117,391.32 = 49,258.05 : x
  2. Step 2: Convert to fraction form
    85,066.13/117,391.32 = 49,258.05/x
  3. Step 3: Cross multiply
    85,066.13x = 117,391.32 × 49,258.05
  4. Step 4: Simplify right side
    85,066.13x = 5,782,467,510.13
  5. Step 5: Solve for x
    x = 5,782,467,510.13/85,066.13
  6. Step 6: Final answer
    x = 67,976.15

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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.