Home / 76,831.58-115,093.65-61,063.22

Finding the Fourth Proportional to 76,831.58, 115,093.65 and 61,063.22

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Solution

The fourth proportional to 76,831.58, 115,093.65 and 61,063.22 is: 91,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831.58 : 115,093.65 = 61,063.22 : x
  2. Step 2: Convert to fraction form
    76,831.58/115,093.65 = 61,063.22/x
  3. Step 3: Cross multiply
    76,831.58x = 115,093.65 × 61,063.22
  4. Step 4: Simplify right side
    76,831.58x = 7,027,988,870.55
  5. Step 5: Solve for x
    x = 7,027,988,870.55/76,831.58
  6. Step 6: Final answer
    x = 91,472.66

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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.