Home / 85,385.04-117,835.92-49,586.28

Finding the Fourth Proportional to 85,385.04, 117,835.92 and 49,586.28

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Solution

The fourth proportional to 85,385.04, 117,835.92 and 49,586.28 is: 68,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,385.04 : 117,835.92 = 49,586.28 : x
  2. Step 2: Convert to fraction form
    85,385.04/117,835.92 = 49,586.28/x
  3. Step 3: Cross multiply
    85,385.04x = 117,835.92 × 49,586.28
  4. Step 4: Simplify right side
    85,385.04x = 5,843,044,923.18
  5. Step 5: Solve for x
    x = 5,843,044,923.18/85,385.04
  6. Step 6: Final answer
    x = 68,431.72

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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.