Home / 53,720.34-80,578.08-18,662.76

Finding the Fourth Proportional to 53,720.34, 80,578.08 and 18,662.76

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Solution

The fourth proportional to 53,720.34, 80,578.08 and 18,662.76 is: 27,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.34 : 80,578.08 = 18,662.76 : x
  2. Step 2: Convert to fraction form
    53,720.34/80,578.08 = 18,662.76/x
  3. Step 3: Cross multiply
    53,720.34x = 80,578.08 × 18,662.76
  4. Step 4: Simplify right side
    53,720.34x = 1,503,809,368.30
  5. Step 5: Solve for x
    x = 1,503,809,368.30/53,720.34
  6. Step 6: Final answer
    x = 27,993.30

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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.