Home / 91,929.80-126,849.29-51,635.84

Finding the Fourth Proportional to 91,929.80, 126,849.29 and 51,635.84

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Solution

The fourth proportional to 91,929.80, 126,849.29 and 51,635.84 is: 71,249.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,929.80 : 126,849.29 = 51,635.84 : x
  2. Step 2: Convert to fraction form
    91,929.80/126,849.29 = 51,635.84/x
  3. Step 3: Cross multiply
    91,929.80x = 126,849.29 × 51,635.84
  4. Step 4: Simplify right side
    91,929.80x = 6,549,969,642.55
  5. Step 5: Solve for x
    x = 6,549,969,642.55/91,929.80
  6. Step 6: Final answer
    x = 71,249.69

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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.