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Finding the Fourth Proportional to 57,103.47, 85,655.21 and 17,659.71

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Solution

The fourth proportional to 57,103.47, 85,655.21 and 17,659.71 is: 26,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,103.47 : 85,655.21 = 17,659.71 : x
  2. Step 2: Convert to fraction form
    57,103.47/85,655.21 = 17,659.71/x
  3. Step 3: Cross multiply
    57,103.47x = 85,655.21 × 17,659.71
  4. Step 4: Simplify right side
    57,103.47x = 1,512,646,080.29
  5. Step 5: Solve for x
    x = 1,512,646,080.29/57,103.47
  6. Step 6: Final answer
    x = 26,489.57

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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.