Home / 85,087.68-117,412.52-49,289.19

Finding the Fourth Proportional to 85,087.68, 117,412.52 and 49,289.19

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Solution

The fourth proportional to 85,087.68, 117,412.52 and 49,289.19 is: 68,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,087.68 : 117,412.52 = 49,289.19 : x
  2. Step 2: Convert to fraction form
    85,087.68/117,412.52 = 49,289.19/x
  3. Step 3: Cross multiply
    85,087.68x = 117,412.52 × 49,289.19
  4. Step 4: Simplify right side
    85,087.68x = 5,787,167,760.21
  5. Step 5: Solve for x
    x = 5,787,167,760.21/85,087.68
  6. Step 6: Final answer
    x = 68,014.17

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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.