Home / 77,291.35-115,980.86-32,913.47

Finding the Fourth Proportional to 77,291.35, 115,980.86 and 32,913.47

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Solution

The fourth proportional to 77,291.35, 115,980.86 and 32,913.47 is: 49,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,291.35 : 115,980.86 = 32,913.47 : x
  2. Step 2: Convert to fraction form
    77,291.35/115,980.86 = 32,913.47/x
  3. Step 3: Cross multiply
    77,291.35x = 115,980.86 × 32,913.47
  4. Step 4: Simplify right side
    77,291.35x = 3,817,332,928.42
  5. Step 5: Solve for x
    x = 3,817,332,928.42/77,291.35
  6. Step 6: Final answer
    x = 49,388.88

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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.