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Finding the Fourth Proportional to 85,120.96, 127,690.08 and 32,574.64

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Solution

The fourth proportional to 85,120.96, 127,690.08 and 32,574.64 is: 48,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,120.96 : 127,690.08 = 32,574.64 : x
  2. Step 2: Convert to fraction form
    85,120.96/127,690.08 = 32,574.64/x
  3. Step 3: Cross multiply
    85,120.96x = 127,690.08 × 32,574.64
  4. Step 4: Simplify right side
    85,120.96x = 4,159,458,387.57
  5. Step 5: Solve for x
    x = 4,159,458,387.57/85,120.96
  6. Step 6: Final answer
    x = 48,865.27

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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.