Home / 85,672.28-118,211.30-55,453.41

Finding the Fourth Proportional to 85,672.28, 118,211.30 and 55,453.41

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Solution

The fourth proportional to 85,672.28, 118,211.30 and 55,453.41 is: 76,515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,672.28 : 118,211.30 = 55,453.41 : x
  2. Step 2: Convert to fraction form
    85,672.28/118,211.30 = 55,453.41/x
  3. Step 3: Cross multiply
    85,672.28x = 118,211.30 × 55,453.41
  4. Step 4: Simplify right side
    85,672.28x = 6,555,219,616.22
  5. Step 5: Solve for x
    x = 6,555,219,616.22/85,672.28
  6. Step 6: Final answer
    x = 76,515.06

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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.