Home / 53,557.12-80,351.52-18,500.32

Finding the Fourth Proportional to 53,557.12, 80,351.52 and 18,500.32

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Solution

The fourth proportional to 53,557.12, 80,351.52 and 18,500.32 is: 27,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,557.12 : 80,351.52 = 18,500.32 : x
  2. Step 2: Convert to fraction form
    53,557.12/80,351.52 = 18,500.32/x
  3. Step 3: Cross multiply
    53,557.12x = 80,351.52 × 18,500.32
  4. Step 4: Simplify right side
    53,557.12x = 1,486,528,832.49
  5. Step 5: Solve for x
    x = 1,486,528,832.49/53,557.12
  6. Step 6: Final answer
    x = 27,755.95

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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.