Home / 91,779.26-126,699.87-61,553.54

Finding the Fourth Proportional to 91,779.26, 126,699.87 and 61,553.54

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Solution

The fourth proportional to 91,779.26, 126,699.87 and 61,553.54 is: 84,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,779.26 : 126,699.87 = 61,553.54 : x
  2. Step 2: Convert to fraction form
    91,779.26/126,699.87 = 61,553.54/x
  3. Step 3: Cross multiply
    91,779.26x = 126,699.87 × 61,553.54
  4. Step 4: Simplify right side
    91,779.26x = 7,798,825,516.04
  5. Step 5: Solve for x
    x = 7,798,825,516.04/91,779.26
  6. Step 6: Final answer
    x = 84,973.72

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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.