Home / 58,777.13-81,137.25-39,682.76

Finding the Fourth Proportional to 58,777.13, 81,137.25 and 39,682.76

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Solution

The fourth proportional to 58,777.13, 81,137.25 and 39,682.76 is: 54,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,777.13 : 81,137.25 = 39,682.76 : x
  2. Step 2: Convert to fraction form
    58,777.13/81,137.25 = 39,682.76/x
  3. Step 3: Cross multiply
    58,777.13x = 81,137.25 × 39,682.76
  4. Step 4: Simplify right side
    58,777.13x = 3,219,749,613.12
  5. Step 5: Solve for x
    x = 3,219,749,613.12/58,777.13
  6. Step 6: Final answer
    x = 54,778.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.