Home / 85,200.70-117,577.28-47,474.95

Finding the Fourth Proportional to 85,200.70, 117,577.28 and 47,474.95

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Solution

The fourth proportional to 85,200.70, 117,577.28 and 47,474.95 is: 65,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,200.70 : 117,577.28 = 47,474.95 : x
  2. Step 2: Convert to fraction form
    85,200.70/117,577.28 = 47,474.95/x
  3. Step 3: Cross multiply
    85,200.70x = 117,577.28 × 47,474.95
  4. Step 4: Simplify right side
    85,200.70x = 5,581,974,663.87
  5. Step 5: Solve for x
    x = 5,581,974,663.87/85,200.70
  6. Step 6: Final answer
    x = 65,515.60

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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.