Home / 91,830.34-126,716.12-51,548.53

Finding the Fourth Proportional to 91,830.34, 126,716.12 and 51,548.53

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Solution

The fourth proportional to 91,830.34, 126,716.12 and 51,548.53 is: 71,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,830.34 : 126,716.12 = 51,548.53 : x
  2. Step 2: Convert to fraction form
    91,830.34/126,716.12 = 51,548.53/x
  3. Step 3: Cross multiply
    91,830.34x = 126,716.12 × 51,548.53
  4. Step 4: Simplify right side
    91,830.34x = 6,532,029,713.30
  5. Step 5: Solve for x
    x = 6,532,029,713.30/91,830.34
  6. Step 6: Final answer
    x = 71,131.50

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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.