Home / 85,451.29-117,914.34-49,642.81

Finding the Fourth Proportional to 85,451.29, 117,914.34 and 49,642.81

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Solution

The fourth proportional to 85,451.29, 117,914.34 and 49,642.81 is: 68,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,451.29 : 117,914.34 = 49,642.81 : x
  2. Step 2: Convert to fraction form
    85,451.29/117,914.34 = 49,642.81/x
  3. Step 3: Cross multiply
    85,451.29x = 117,914.34 × 49,642.81
  4. Step 4: Simplify right side
    85,451.29x = 5,853,599,176.90
  5. Step 5: Solve for x
    x = 5,853,599,176.90/85,451.29
  6. Step 6: Final answer
    x = 68,502.17

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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.