Home / 85,378.44-117,811.38-47,654.28

Finding the Fourth Proportional to 85,378.44, 117,811.38 and 47,654.28

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Solution

The fourth proportional to 85,378.44, 117,811.38 and 47,654.28 is: 65,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,378.44 : 117,811.38 = 47,654.28 : x
  2. Step 2: Convert to fraction form
    85,378.44/117,811.38 = 47,654.28/x
  3. Step 3: Cross multiply
    85,378.44x = 117,811.38 × 47,654.28
  4. Step 4: Simplify right side
    85,378.44x = 5,614,216,489.71
  5. Step 5: Solve for x
    x = 5,614,216,489.71/85,378.44
  6. Step 6: Final answer
    x = 65,756.84

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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.