Home / 77,148.14-115,714.47-54,754.34

Finding the Fourth Proportional to 77,148.14, 115,714.47 and 54,754.34

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Solution

The fourth proportional to 77,148.14, 115,714.47 and 54,754.34 is: 82,126.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,148.14 : 115,714.47 = 54,754.34 : x
  2. Step 2: Convert to fraction form
    77,148.14/115,714.47 = 54,754.34/x
  3. Step 3: Cross multiply
    77,148.14x = 115,714.47 × 54,754.34
  4. Step 4: Simplify right side
    77,148.14x = 6,335,869,433.30
  5. Step 5: Solve for x
    x = 6,335,869,433.30/77,148.14
  6. Step 6: Final answer
    x = 82,126.02

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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.