Home / 91,855.71-126,768.20-51,572.12

Finding the Fourth Proportional to 91,855.71, 126,768.20 and 51,572.12

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Solution

The fourth proportional to 91,855.71, 126,768.20 and 51,572.12 is: 71,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,855.71 : 126,768.20 = 51,572.12 : x
  2. Step 2: Convert to fraction form
    91,855.71/126,768.20 = 51,572.12/x
  3. Step 3: Cross multiply
    91,855.71x = 126,768.20 × 51,572.12
  4. Step 4: Simplify right side
    91,855.71x = 6,537,704,188.74
  5. Step 5: Solve for x
    x = 6,537,704,188.74/91,855.71
  6. Step 6: Final answer
    x = 71,173.63

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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.