Home / 53,821.58-80,688.62-18,785.84

Finding the Fourth Proportional to 53,821.58, 80,688.62 and 18,785.84

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Solution

The fourth proportional to 53,821.58, 80,688.62 and 18,785.84 is: 28,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,821.58 : 80,688.62 = 18,785.84 : x
  2. Step 2: Convert to fraction form
    53,821.58/80,688.62 = 18,785.84/x
  3. Step 3: Cross multiply
    53,821.58x = 80,688.62 × 18,785.84
  4. Step 4: Simplify right side
    53,821.58x = 1,515,803,148.66
  5. Step 5: Solve for x
    x = 1,515,803,148.66/53,821.58
  6. Step 6: Final answer
    x = 28,163.49

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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.