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Finding the Fourth Proportional to 57,141.56, 85,695.80 and 17,158.93

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Solution

The fourth proportional to 57,141.56, 85,695.80 and 17,158.93 is: 25,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,141.56 : 85,695.80 = 17,158.93 : x
  2. Step 2: Convert to fraction form
    57,141.56/85,695.80 = 17,158.93/x
  3. Step 3: Cross multiply
    57,141.56x = 85,695.80 × 17,158.93
  4. Step 4: Simplify right side
    57,141.56x = 1,470,448,254.82
  5. Step 5: Solve for x
    x = 1,470,448,254.82/57,141.56
  6. Step 6: Final answer
    x = 25,733.43

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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.