Home / 85,020.40-127,579.20-32,467.60

Finding the Fourth Proportional to 85,020.40, 127,579.20 and 32,467.60

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Solution

The fourth proportional to 85,020.40, 127,579.20 and 32,467.60 is: 48,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,020.40 : 127,579.20 = 32,467.60 : x
  2. Step 2: Convert to fraction form
    85,020.40/127,579.20 = 32,467.60/x
  3. Step 3: Cross multiply
    85,020.40x = 127,579.20 × 32,467.60
  4. Step 4: Simplify right side
    85,020.40x = 4,142,190,433.92
  5. Step 5: Solve for x
    x = 4,142,190,433.92/85,020.40
  6. Step 6: Final answer
    x = 48,719.96

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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.