Home / 76,421.34-114,579.72-38,908.82

Finding the Fourth Proportional to 76,421.34, 114,579.72 and 38,908.82

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Solution

The fourth proportional to 76,421.34, 114,579.72 and 38,908.82 is: 58,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421.34 : 114,579.72 = 38,908.82 : x
  2. Step 2: Convert to fraction form
    76,421.34/114,579.72 = 38,908.82/x
  3. Step 3: Cross multiply
    76,421.34x = 114,579.72 × 38,908.82
  4. Step 4: Simplify right side
    76,421.34x = 4,458,161,701.13
  5. Step 5: Solve for x
    x = 4,458,161,701.13/76,421.34
  6. Step 6: Final answer
    x = 58,336.61

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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.