Home / 57,131.73-85,730.00-30,835.89

Finding the Fourth Proportional to 57,131.73, 85,730.00 and 30,835.89

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Solution

The fourth proportional to 57,131.73, 85,730.00 and 30,835.89 is: 46,271.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,131.73 : 85,730.00 = 30,835.89 : x
  2. Step 2: Convert to fraction form
    57,131.73/85,730.00 = 30,835.89/x
  3. Step 3: Cross multiply
    57,131.73x = 85,730.00 × 30,835.89
  4. Step 4: Simplify right side
    57,131.73x = 2,643,560,695.52
  5. Step 5: Solve for x
    x = 2,643,560,695.52/57,131.73
  6. Step 6: Final answer
    x = 46,271.32

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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.