Home / 77,106.76-115,589.10-27,159.64

Finding the Fourth Proportional to 77,106.76, 115,589.10 and 27,159.64

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Solution

The fourth proportional to 77,106.76, 115,589.10 and 27,159.64 is: 40,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,106.76 : 115,589.10 = 27,159.64 : x
  2. Step 2: Convert to fraction form
    77,106.76/115,589.10 = 27,159.64/x
  3. Step 3: Cross multiply
    77,106.76x = 115,589.10 × 27,159.64
  4. Step 4: Simplify right side
    77,106.76x = 3,139,358,343.92
  5. Step 5: Solve for x
    x = 3,139,358,343.92/77,106.76
  6. Step 6: Final answer
    x = 40,714.44

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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.