Home / 91,975.86-126,929.21-51,693.30

Finding the Fourth Proportional to 91,975.86, 126,929.21 and 51,693.30

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Solution

The fourth proportional to 91,975.86, 126,929.21 and 51,693.30 is: 71,338.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,975.86 : 126,929.21 = 51,693.30 : x
  2. Step 2: Convert to fraction form
    91,975.86/126,929.21 = 51,693.30/x
  3. Step 3: Cross multiply
    91,975.86x = 126,929.21 × 51,693.30
  4. Step 4: Simplify right side
    91,975.86x = 6,561,389,472.83
  5. Step 5: Solve for x
    x = 6,561,389,472.83/91,975.86
  6. Step 6: Final answer
    x = 71,338.17

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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.