Home / 85,615.74-118,178.89-49,835.82

Finding the Fourth Proportional to 85,615.74, 118,178.89 and 49,835.82

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Solution

The fourth proportional to 85,615.74, 118,178.89 and 49,835.82 is: 68,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,615.74 : 118,178.89 = 49,835.82 : x
  2. Step 2: Convert to fraction form
    85,615.74/118,178.89 = 49,835.82/x
  3. Step 3: Cross multiply
    85,615.74x = 118,178.89 × 49,835.82
  4. Step 4: Simplify right side
    85,615.74x = 5,889,541,889.84
  5. Step 5: Solve for x
    x = 5,889,541,889.84/85,615.74
  6. Step 6: Final answer
    x = 68,790.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.