Home / 91,977.03-126,880.61-61,770.92

Finding the Fourth Proportional to 91,977.03, 126,880.61 and 61,770.92

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Solution

The fourth proportional to 91,977.03, 126,880.61 and 61,770.92 is: 85,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977.03 : 126,880.61 = 61,770.92 : x
  2. Step 2: Convert to fraction form
    91,977.03/126,880.61 = 61,770.92/x
  3. Step 3: Cross multiply
    91,977.03x = 126,880.61 × 61,770.92
  4. Step 4: Simplify right side
    91,977.03x = 7,837,531,066.60
  5. Step 5: Solve for x
    x = 7,837,531,066.60/91,977.03
  6. Step 6: Final answer
    x = 85,211.83

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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.