Home / 43,134.57-64,655.48-20,898.86

Finding the Fourth Proportional to 43,134.57, 64,655.48 and 20,898.86

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Solution

The fourth proportional to 43,134.57, 64,655.48 and 20,898.86 is: 31,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.57 : 64,655.48 = 20,898.86 : x
  2. Step 2: Convert to fraction form
    43,134.57/64,655.48 = 20,898.86/x
  3. Step 3: Cross multiply
    43,134.57x = 64,655.48 × 20,898.86
  4. Step 4: Simplify right side
    43,134.57x = 1,351,225,553.72
  5. Step 5: Solve for x
    x = 1,351,225,553.72/43,134.57
  6. Step 6: Final answer
    x = 31,325.81

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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.