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Finding the Fourth Proportional to 85,164.52, 127,626.32 and 47,230.57

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Solution

The fourth proportional to 85,164.52, 127,626.32 and 47,230.57 is: 70,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164.52 : 127,626.32 = 47,230.57 : x
  2. Step 2: Convert to fraction form
    85,164.52/127,626.32 = 47,230.57/x
  3. Step 3: Cross multiply
    85,164.52x = 127,626.32 × 47,230.57
  4. Step 4: Simplify right side
    85,164.52x = 6,027,863,604.45
  5. Step 5: Solve for x
    x = 6,027,863,604.45/85,164.52
  6. Step 6: Final answer
    x = 70,779.05

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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.