Home / 85,585.44-118,108.80-47,861.76

Finding the Fourth Proportional to 85,585.44, 118,108.80 and 47,861.76

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Solution

The fourth proportional to 85,585.44, 118,108.80 and 47,861.76 is: 66,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,585.44 : 118,108.80 = 47,861.76 : x
  2. Step 2: Convert to fraction form
    85,585.44/118,108.80 = 47,861.76/x
  3. Step 3: Cross multiply
    85,585.44x = 118,108.80 × 47,861.76
  4. Step 4: Simplify right side
    85,585.44x = 5,652,895,039.49
  5. Step 5: Solve for x
    x = 5,652,895,039.49/85,585.44
  6. Step 6: Final answer
    x = 66,049.73

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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.