Home / 76,488.12-114,714.86-29,086.32

Finding the Fourth Proportional to 76,488.12, 114,714.86 and 29,086.32

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Solution

The fourth proportional to 76,488.12, 114,714.86 and 29,086.32 is: 43,622.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,488.12 : 114,714.86 = 29,086.32 : x
  2. Step 2: Convert to fraction form
    76,488.12/114,714.86 = 29,086.32/x
  3. Step 3: Cross multiply
    76,488.12x = 114,714.86 × 29,086.32
  4. Step 4: Simplify right side
    76,488.12x = 3,336,632,981.28
  5. Step 5: Solve for x
    x = 3,336,632,981.28/76,488.12
  6. Step 6: Final answer
    x = 43,622.89

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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.