Home / 81,614.08-122,166.72-62,845.36

Finding the Fourth Proportional to 81,614.08, 122,166.72 and 62,845.36

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Solution

The fourth proportional to 81,614.08, 122,166.72 and 62,845.36 is: 94,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,614.08 : 122,166.72 = 62,845.36 : x
  2. Step 2: Convert to fraction form
    81,614.08/122,166.72 = 62,845.36/x
  3. Step 3: Cross multiply
    81,614.08x = 122,166.72 × 62,845.36
  4. Step 4: Simplify right side
    81,614.08x = 7,677,611,498.42
  5. Step 5: Solve for x
    x = 7,677,611,498.42/81,614.08
  6. Step 6: Final answer
    x = 94,072.14

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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.