Home / 85,157.71-117,517.68-49,368.47

Finding the Fourth Proportional to 85,157.71, 117,517.68 and 49,368.47

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Solution

The fourth proportional to 85,157.71, 117,517.68 and 49,368.47 is: 68,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,157.71 : 117,517.68 = 49,368.47 : x
  2. Step 2: Convert to fraction form
    85,157.71/117,517.68 = 49,368.47/x
  3. Step 3: Cross multiply
    85,157.71x = 117,517.68 × 49,368.47
  4. Step 4: Simplify right side
    85,157.71x = 5,801,667,225.12
  5. Step 5: Solve for x
    x = 5,801,667,225.12/85,157.71
  6. Step 6: Final answer
    x = 68,128.50

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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.