Home / 53,815.56-80,670.64-20,056.86

Finding the Fourth Proportional to 53,815.56, 80,670.64 and 20,056.86

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Solution

The fourth proportional to 53,815.56, 80,670.64 and 20,056.86 is: 30,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,815.56 : 80,670.64 = 20,056.86 : x
  2. Step 2: Convert to fraction form
    53,815.56/80,670.64 = 20,056.86/x
  3. Step 3: Cross multiply
    53,815.56x = 80,670.64 × 20,056.86
  4. Step 4: Simplify right side
    53,815.56x = 1,617,999,732.59
  5. Step 5: Solve for x
    x = 1,617,999,732.59/53,815.56
  6. Step 6: Final answer
    x = 30,065.65

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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.