Home / 77,308.17-115,852.91-32,890.20

Finding the Fourth Proportional to 77,308.17, 115,852.91 and 32,890.20

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Solution

The fourth proportional to 77,308.17, 115,852.91 and 32,890.20 is: 49,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,308.17 : 115,852.91 = 32,890.20 : x
  2. Step 2: Convert to fraction form
    77,308.17/115,852.91 = 32,890.20/x
  3. Step 3: Cross multiply
    77,308.17x = 115,852.91 × 32,890.20
  4. Step 4: Simplify right side
    77,308.17x = 3,810,425,216.03
  5. Step 5: Solve for x
    x = 3,810,425,216.03/77,308.17
  6. Step 6: Final answer
    x = 49,288.78

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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.