Home / 58,777.12-81,137.24-39,682.74

Finding the Fourth Proportional to 58,777.12, 81,137.24 and 39,682.74

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Solution

The fourth proportional to 58,777.12, 81,137.24 and 39,682.74 is: 54,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,777.12 : 81,137.24 = 39,682.74 : x
  2. Step 2: Convert to fraction form
    58,777.12/81,137.24 = 39,682.74/x
  3. Step 3: Cross multiply
    58,777.12x = 81,137.24 × 39,682.74
  4. Step 4: Simplify right side
    58,777.12x = 3,219,748,316.46
  5. Step 5: Solve for x
    x = 3,219,748,316.46/58,777.12
  6. Step 6: Final answer
    x = 54,778.94

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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.