Home / 76,754.61-115,126.54-28,714.05

Finding the Fourth Proportional to 76,754.61, 115,126.54 and 28,714.05

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Solution

The fourth proportional to 76,754.61, 115,126.54 and 28,714.05 is: 43,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,754.61 : 115,126.54 = 28,714.05 : x
  2. Step 2: Convert to fraction form
    76,754.61/115,126.54 = 28,714.05/x
  3. Step 3: Cross multiply
    76,754.61x = 115,126.54 × 28,714.05
  4. Step 4: Simplify right side
    76,754.61x = 3,305,749,154.10
  5. Step 5: Solve for x
    x = 3,305,749,154.10/76,754.61
  6. Step 6: Final answer
    x = 43,069.06

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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.