Home / 52,639.92-72,644.04-28,767.60

Finding the Fourth Proportional to 52,639.92, 72,644.04 and 28,767.60

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Solution

The fourth proportional to 52,639.92, 72,644.04 and 28,767.60 is: 39,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.92 : 72,644.04 = 28,767.60 : x
  2. Step 2: Convert to fraction form
    52,639.92/72,644.04 = 28,767.60/x
  3. Step 3: Cross multiply
    52,639.92x = 72,644.04 × 28,767.60
  4. Step 4: Simplify right side
    52,639.92x = 2,089,794,685.10
  5. Step 5: Solve for x
    x = 2,089,794,685.10/52,639.92
  6. Step 6: Final answer
    x = 39,699.81

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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.