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Finding the Fourth Proportional to 55,102.88, 82,641.90 and 15,659.12

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Solution

The fourth proportional to 55,102.88, 82,641.90 and 15,659.12 is: 23,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,102.88 : 82,641.90 = 15,659.12 : x
  2. Step 2: Convert to fraction form
    55,102.88/82,641.90 = 15,659.12/x
  3. Step 3: Cross multiply
    55,102.88x = 82,641.90 × 15,659.12
  4. Step 4: Simplify right side
    55,102.88x = 1,294,099,429.13
  5. Step 5: Solve for x
    x = 1,294,099,429.13/55,102.88
  6. Step 6: Final answer
    x = 23,485.15

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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.