Home / 91,578.48-126,393.54-62,874.66

Finding the Fourth Proportional to 91,578.48, 126,393.54 and 62,874.66

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Solution

The fourth proportional to 91,578.48, 126,393.54 and 62,874.66 is: 86,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,578.48 : 126,393.54 = 62,874.66 : x
  2. Step 2: Convert to fraction form
    91,578.48/126,393.54 = 62,874.66/x
  3. Step 3: Cross multiply
    91,578.48x = 126,393.54 × 62,874.66
  4. Step 4: Simplify right side
    91,578.48x = 7,946,950,853.70
  5. Step 5: Solve for x
    x = 7,946,950,853.70/91,578.48
  6. Step 6: Final answer
    x = 86,777.49

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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.