Home / 85,084.91-127,598.64-31,765.85

Finding the Fourth Proportional to 85,084.91, 127,598.64 and 31,765.85

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Solution

The fourth proportional to 85,084.91, 127,598.64 and 31,765.85 is: 47,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,084.91 : 127,598.64 = 31,765.85 : x
  2. Step 2: Convert to fraction form
    85,084.91/127,598.64 = 31,765.85/x
  3. Step 3: Cross multiply
    85,084.91x = 127,598.64 × 31,765.85
  4. Step 4: Simplify right side
    85,084.91x = 4,053,279,258.44
  5. Step 5: Solve for x
    x = 4,053,279,258.44/85,084.91
  6. Step 6: Final answer
    x = 47,638.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.