Home / 53,916.69-80,853.98-20,625.69

Finding the Fourth Proportional to 53,916.69, 80,853.98 and 20,625.69

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Solution

The fourth proportional to 53,916.69, 80,853.98 and 20,625.69 is: 30,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,916.69 : 80,853.98 = 20,625.69 : x
  2. Step 2: Convert to fraction form
    53,916.69/80,853.98 = 20,625.69/x
  3. Step 3: Cross multiply
    53,916.69x = 80,853.98 × 20,625.69
  4. Step 4: Simplify right side
    53,916.69x = 1,667,669,023.62
  5. Step 5: Solve for x
    x = 1,667,669,023.62/53,916.69
  6. Step 6: Final answer
    x = 30,930.48

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1.5x scale

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.