Home / 58,986.54-81,419.22-40,134.60

Finding the Fourth Proportional to 58,986.54, 81,419.22 and 40,134.60

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Solution

The fourth proportional to 58,986.54, 81,419.22 and 40,134.60 is: 55,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,986.54 : 81,419.22 = 40,134.60 : x
  2. Step 2: Convert to fraction form
    58,986.54/81,419.22 = 40,134.60/x
  3. Step 3: Cross multiply
    58,986.54x = 81,419.22 × 40,134.60
  4. Step 4: Simplify right side
    58,986.54x = 3,267,727,930.22
  5. Step 5: Solve for x
    x = 3,267,727,930.22/58,986.54
  6. Step 6: Final answer
    x = 55,397.86

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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.