Home / 74,078.85-102,218.10-43,865.45

Finding the Fourth Proportional to 74,078.85, 102,218.10 and 43,865.45

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Solution

The fourth proportional to 74,078.85, 102,218.10 and 43,865.45 is: 60,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,078.85 : 102,218.10 = 43,865.45 : x
  2. Step 2: Convert to fraction form
    74,078.85/102,218.10 = 43,865.45/x
  3. Step 3: Cross multiply
    74,078.85x = 102,218.10 × 43,865.45
  4. Step 4: Simplify right side
    74,078.85x = 4,483,842,909.12
  5. Step 5: Solve for x
    x = 4,483,842,909.12/74,078.85
  6. Step 6: Final answer
    x = 60,527.97

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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.