Home / 54,989.38-82,336.45-28,638.77

Finding the Fourth Proportional to 54,989.38, 82,336.45 and 28,638.77

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Solution

The fourth proportional to 54,989.38, 82,336.45 and 28,638.77 is: 42,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,989.38 : 82,336.45 = 28,638.77 : x
  2. Step 2: Convert to fraction form
    54,989.38/82,336.45 = 28,638.77/x
  3. Step 3: Cross multiply
    54,989.38x = 82,336.45 × 28,638.77
  4. Step 4: Simplify right side
    54,989.38x = 2,358,014,224.59
  5. Step 5: Solve for x
    x = 2,358,014,224.59/54,989.38
  6. Step 6: Final answer
    x = 42,881.26

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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.