Home / 83,741.76-115,568.80-47,930.95

Finding the Fourth Proportional to 83,741.76, 115,568.80 and 47,930.95

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Solution

The fourth proportional to 83,741.76, 115,568.80 and 47,930.95 is: 66,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,741.76 : 115,568.80 = 47,930.95 : x
  2. Step 2: Convert to fraction form
    83,741.76/115,568.80 = 47,930.95/x
  3. Step 3: Cross multiply
    83,741.76x = 115,568.80 × 47,930.95
  4. Step 4: Simplify right side
    83,741.76x = 5,539,321,965.61
  5. Step 5: Solve for x
    x = 5,539,321,965.61/83,741.76
  6. Step 6: Final answer
    x = 66,147.67

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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.