Home / 91,742.44-126,640.58-61,516.72

Finding the Fourth Proportional to 91,742.44, 126,640.58 and 61,516.72

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Solution

The fourth proportional to 91,742.44, 126,640.58 and 61,516.72 is: 84,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,742.44 : 126,640.58 = 61,516.72 : x
  2. Step 2: Convert to fraction form
    91,742.44/126,640.58 = 61,516.72/x
  3. Step 3: Cross multiply
    91,742.44x = 126,640.58 × 61,516.72
  4. Step 4: Simplify right side
    91,742.44x = 7,790,513,100.50
  5. Step 5: Solve for x
    x = 7,790,513,100.50/91,742.44
  6. Step 6: Final answer
    x = 84,917.22

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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.