Home / 85,242.28-117,633.06-47,515.56

Finding the Fourth Proportional to 85,242.28, 117,633.06 and 47,515.56

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Solution

The fourth proportional to 85,242.28, 117,633.06 and 47,515.56 is: 65,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,242.28 : 117,633.06 = 47,515.56 : x
  2. Step 2: Convert to fraction form
    85,242.28/117,633.06 = 47,515.56/x
  3. Step 3: Cross multiply
    85,242.28x = 117,633.06 × 47,515.56
  4. Step 4: Simplify right side
    85,242.28x = 5,589,400,720.41
  5. Step 5: Solve for x
    x = 5,589,400,720.41/85,242.28
  6. Step 6: Final answer
    x = 65,570.76

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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.