Home / 91,823.88-126,729.30-51,539.84

Finding the Fourth Proportional to 91,823.88, 126,729.30 and 51,539.84

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Solution

The fourth proportional to 91,823.88, 126,729.30 and 51,539.84 is: 71,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,823.88 : 126,729.30 = 51,539.84 : x
  2. Step 2: Convert to fraction form
    91,823.88/126,729.30 = 51,539.84/x
  3. Step 3: Cross multiply
    91,823.88x = 126,729.30 × 51,539.84
  4. Step 4: Simplify right side
    91,823.88x = 6,531,607,845.31
  5. Step 5: Solve for x
    x = 6,531,607,845.31/91,823.88
  6. Step 6: Final answer
    x = 71,131.91

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1.5x scale

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.