Home / 53,519.50-73,840.35-30,855.61

Finding the Fourth Proportional to 53,519.50, 73,840.35 and 30,855.61

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Solution

The fourth proportional to 53,519.50, 73,840.35 and 30,855.61 is: 42,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,519.50 : 73,840.35 = 30,855.61 : x
  2. Step 2: Convert to fraction form
    53,519.50/73,840.35 = 30,855.61/x
  3. Step 3: Cross multiply
    53,519.50x = 73,840.35 × 30,855.61
  4. Step 4: Simplify right side
    53,519.50x = 2,278,389,041.86
  5. Step 5: Solve for x
    x = 2,278,389,041.86/53,519.50
  6. Step 6: Final answer
    x = 42,571.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.