Home / 91,918.14-126,843.76-56,167.98

Finding the Fourth Proportional to 91,918.14, 126,843.76 and 56,167.98

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Solution

The fourth proportional to 91,918.14, 126,843.76 and 56,167.98 is: 77,509.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,918.14 : 126,843.76 = 56,167.98 : x
  2. Step 2: Convert to fraction form
    91,918.14/126,843.76 = 56,167.98/x
  3. Step 3: Cross multiply
    91,918.14x = 126,843.76 × 56,167.98
  4. Step 4: Simplify right side
    91,918.14x = 7,124,557,774.80
  5. Step 5: Solve for x
    x = 7,124,557,774.80/91,918.14
  6. Step 6: Final answer
    x = 77,509.81

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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.