Home / 57,158.29-85,712.61-30,498.33

Finding the Fourth Proportional to 57,158.29, 85,712.61 and 30,498.33

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Solution

The fourth proportional to 57,158.29, 85,712.61 and 30,498.33 is: 45,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,158.29 : 85,712.61 = 30,498.33 : x
  2. Step 2: Convert to fraction form
    57,158.29/85,712.61 = 30,498.33/x
  3. Step 3: Cross multiply
    57,158.29x = 85,712.61 × 30,498.33
  4. Step 4: Simplify right side
    57,158.29x = 2,614,091,816.76
  5. Step 5: Solve for x
    x = 2,614,091,816.76/57,158.29
  6. Step 6: Final answer
    x = 45,734.25

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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.