Home / 85,119.87-117,447.55-49,307.73

Finding the Fourth Proportional to 85,119.87, 117,447.55 and 49,307.73

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Solution

The fourth proportional to 85,119.87, 117,447.55 and 49,307.73 is: 68,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,119.87 : 117,447.55 = 49,307.73 : x
  2. Step 2: Convert to fraction form
    85,119.87/117,447.55 = 49,307.73/x
  3. Step 3: Cross multiply
    85,119.87x = 117,447.55 × 49,307.73
  4. Step 4: Simplify right side
    85,119.87x = 5,791,071,838.02
  5. Step 5: Solve for x
    x = 5,791,071,838.02/85,119.87
  6. Step 6: Final answer
    x = 68,034.31

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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.