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Finding the Fourth Proportional to 55,120.70, 82,640.34 and 17,659.10

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Solution

The fourth proportional to 55,120.70, 82,640.34 and 17,659.10 is: 26,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120.70 : 82,640.34 = 17,659.10 : x
  2. Step 2: Convert to fraction form
    55,120.70/82,640.34 = 17,659.10/x
  3. Step 3: Cross multiply
    55,120.70x = 82,640.34 × 17,659.10
  4. Step 4: Simplify right side
    55,120.70x = 1,459,353,614.89
  5. Step 5: Solve for x
    x = 1,459,353,614.89/55,120.70
  6. Step 6: Final answer
    x = 26,475.60

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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.