Home / 53,599.64-80,399.45-18,520.16

Finding the Fourth Proportional to 53,599.64, 80,399.45 and 18,520.16

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Solution

The fourth proportional to 53,599.64, 80,399.45 and 18,520.16 is: 27,780.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,599.64 : 80,399.45 = 18,520.16 : x
  2. Step 2: Convert to fraction form
    53,599.64/80,399.45 = 18,520.16/x
  3. Step 3: Cross multiply
    53,599.64x = 80,399.45 × 18,520.16
  4. Step 4: Simplify right side
    53,599.64x = 1,489,010,322.22
  5. Step 5: Solve for x
    x = 1,489,010,322.22/53,599.64
  6. Step 6: Final answer
    x = 27,780.23

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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.