Home / 55,669.38-83,512.71-18,730.50

Finding the Fourth Proportional to 55,669.38, 83,512.71 and 18,730.50

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Solution

The fourth proportional to 55,669.38, 83,512.71 and 18,730.50 is: 28,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,669.38 : 83,512.71 = 18,730.50 : x
  2. Step 2: Convert to fraction form
    55,669.38/83,512.71 = 18,730.50/x
  3. Step 3: Cross multiply
    55,669.38x = 83,512.71 × 18,730.50
  4. Step 4: Simplify right side
    55,669.38x = 1,564,234,814.66
  5. Step 5: Solve for x
    x = 1,564,234,814.66/55,669.38
  6. Step 6: Final answer
    x = 28,098.66

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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.