Home / 81,516.68-112,494.16-49,246.81

Finding the Fourth Proportional to 81,516.68, 112,494.16 and 49,246.81

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Solution

The fourth proportional to 81,516.68, 112,494.16 and 49,246.81 is: 67,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,516.68 : 112,494.16 = 49,246.81 : x
  2. Step 2: Convert to fraction form
    81,516.68/112,494.16 = 49,246.81/x
  3. Step 3: Cross multiply
    81,516.68x = 112,494.16 × 49,246.81
  4. Step 4: Simplify right side
    81,516.68x = 5,539,978,523.63
  5. Step 5: Solve for x
    x = 5,539,978,523.63/81,516.68
  6. Step 6: Final answer
    x = 67,961.29

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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.