Home / 85,155.21-117,517.80-47,429.46

Finding the Fourth Proportional to 85,155.21, 117,517.80 and 47,429.46

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Solution

The fourth proportional to 85,155.21, 117,517.80 and 47,429.46 is: 65,454.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,155.21 : 117,517.80 = 47,429.46 : x
  2. Step 2: Convert to fraction form
    85,155.21/117,517.80 = 47,429.46/x
  3. Step 3: Cross multiply
    85,155.21x = 117,517.80 × 47,429.46
  4. Step 4: Simplify right side
    85,155.21x = 5,573,805,794.39
  5. Step 5: Solve for x
    x = 5,573,805,794.39/85,155.21
  6. Step 6: Final answer
    x = 65,454.67

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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.