Home / 81,704.63-122,557.05-25,545.04

Finding the Fourth Proportional to 81,704.63, 122,557.05 and 25,545.04

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Solution

The fourth proportional to 81,704.63, 122,557.05 and 25,545.04 is: 38,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,704.63 : 122,557.05 = 25,545.04 : x
  2. Step 2: Convert to fraction form
    81,704.63/122,557.05 = 25,545.04/x
  3. Step 3: Cross multiply
    81,704.63x = 122,557.05 × 25,545.04
  4. Step 4: Simplify right side
    81,704.63x = 3,130,724,090.70
  5. Step 5: Solve for x
    x = 3,130,724,090.70/81,704.63
  6. Step 6: Final answer
    x = 38,317.58

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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.