Home / 53,976.69-80,916.03-18,897.21

Finding the Fourth Proportional to 53,976.69, 80,916.03 and 18,897.21

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Solution

The fourth proportional to 53,976.69, 80,916.03 and 18,897.21 is: 28,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,976.69 : 80,916.03 = 18,897.21 : x
  2. Step 2: Convert to fraction form
    53,976.69/80,916.03 = 18,897.21/x
  3. Step 3: Cross multiply
    53,976.69x = 80,916.03 × 18,897.21
  4. Step 4: Simplify right side
    53,976.69x = 1,529,087,211.28
  5. Step 5: Solve for x
    x = 1,529,087,211.28/53,976.69
  6. Step 6: Final answer
    x = 28,328.66

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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.