Home / 74,078.74-102,227.88-40,086.46

Finding the Fourth Proportional to 74,078.74, 102,227.88 and 40,086.46

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Solution

The fourth proportional to 74,078.74, 102,227.88 and 40,086.46 is: 55,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,078.74 : 102,227.88 = 40,086.46 : x
  2. Step 2: Convert to fraction form
    74,078.74/102,227.88 = 40,086.46/x
  3. Step 3: Cross multiply
    74,078.74x = 102,227.88 × 40,086.46
  4. Step 4: Simplify right side
    74,078.74x = 4,097,953,822.50
  5. Step 5: Solve for x
    x = 4,097,953,822.50/74,078.74
  6. Step 6: Final answer
    x = 55,318.89

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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.