Home / 77,739.03-116,444.52-76,853.30

Finding the Fourth Proportional to 77,739.03, 116,444.52 and 76,853.30

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Solution

The fourth proportional to 77,739.03, 116,444.52 and 76,853.30 is: 115,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,739.03 : 116,444.52 = 76,853.30 : x
  2. Step 2: Convert to fraction form
    77,739.03/116,444.52 = 76,853.30/x
  3. Step 3: Cross multiply
    77,739.03x = 116,444.52 × 76,853.30
  4. Step 4: Simplify right side
    77,739.03x = 8,949,145,046.69
  5. Step 5: Solve for x
    x = 8,949,145,046.69/77,739.03
  6. Step 6: Final answer
    x = 115,117.79

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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.