Home / 98,412.22-135,827.42-61,635.50

Finding the Fourth Proportional to 98,412.22, 135,827.42 and 61,635.50

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Solution

The fourth proportional to 98,412.22, 135,827.42 and 61,635.50 is: 85,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,412.22 : 135,827.42 = 61,635.50 : x
  2. Step 2: Convert to fraction form
    98,412.22/135,827.42 = 61,635.50/x
  3. Step 3: Cross multiply
    98,412.22x = 135,827.42 × 61,635.50
  4. Step 4: Simplify right side
    98,412.22x = 8,371,790,945.41
  5. Step 5: Solve for x
    x = 8,371,790,945.41/98,412.22
  6. Step 6: Final answer
    x = 85,068.61

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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.