Home / 76,311.72-114,402.98-28,900.68

Finding the Fourth Proportional to 76,311.72, 114,402.98 and 28,900.68

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Solution

The fourth proportional to 76,311.72, 114,402.98 and 28,900.68 is: 43,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,311.72 : 114,402.98 = 28,900.68 : x
  2. Step 2: Convert to fraction form
    76,311.72/114,402.98 = 28,900.68/x
  3. Step 3: Cross multiply
    76,311.72x = 114,402.98 × 28,900.68
  4. Step 4: Simplify right side
    76,311.72x = 3,306,323,771.52
  5. Step 5: Solve for x
    x = 3,306,323,771.52/76,311.72
  6. Step 6: Final answer
    x = 43,326.55

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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.