Home / 53,921.10-80,881.65-50,421.90

Finding the Fourth Proportional to 53,921.10, 80,881.65 and 50,421.90

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Solution

The fourth proportional to 53,921.10, 80,881.65 and 50,421.90 is: 75,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,921.10 : 80,881.65 = 50,421.90 : x
  2. Step 2: Convert to fraction form
    53,921.10/80,881.65 = 50,421.90/x
  3. Step 3: Cross multiply
    53,921.10x = 80,881.65 × 50,421.90
  4. Step 4: Simplify right side
    53,921.10x = 4,078,206,468.14
  5. Step 5: Solve for x
    x = 4,078,206,468.14/53,921.10
  6. Step 6: Final answer
    x = 75,632.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.