Home / 85,366.20-117,811.72-49,561.67

Finding the Fourth Proportional to 85,366.20, 117,811.72 and 49,561.67

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Solution

The fourth proportional to 85,366.20, 117,811.72 and 49,561.67 is: 68,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.20 : 117,811.72 = 49,561.67 : x
  2. Step 2: Convert to fraction form
    85,366.20/117,811.72 = 49,561.67/x
  3. Step 3: Cross multiply
    85,366.20x = 117,811.72 × 49,561.67
  4. Step 4: Simplify right side
    85,366.20x = 5,838,945,666.47
  5. Step 5: Solve for x
    x = 5,838,945,666.47/85,366.20
  6. Step 6: Final answer
    x = 68,398.80

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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.