Home / 55,342.66-82,971.50-28,660.18

Finding the Fourth Proportional to 55,342.66, 82,971.50 and 28,660.18

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Solution

The fourth proportional to 55,342.66, 82,971.50 and 28,660.18 is: 42,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,342.66 : 82,971.50 = 28,660.18 : x
  2. Step 2: Convert to fraction form
    55,342.66/82,971.50 = 28,660.18/x
  3. Step 3: Cross multiply
    55,342.66x = 82,971.50 × 28,660.18
  4. Step 4: Simplify right side
    55,342.66x = 2,377,978,124.87
  5. Step 5: Solve for x
    x = 2,377,978,124.87/55,342.66
  6. Step 6: Final answer
    x = 42,968.27

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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.