Home / 53,865.77-80,771.61-31,383.72

Finding the Fourth Proportional to 53,865.77, 80,771.61 and 31,383.72

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Solution

The fourth proportional to 53,865.77, 80,771.61 and 31,383.72 is: 47,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865.77 : 80,771.61 = 31,383.72 : x
  2. Step 2: Convert to fraction form
    53,865.77/80,771.61 = 31,383.72/x
  3. Step 3: Cross multiply
    53,865.77x = 80,771.61 × 31,383.72
  4. Step 4: Simplify right side
    53,865.77x = 2,534,913,592.19
  5. Step 5: Solve for x
    x = 2,534,913,592.19/53,865.77
  6. Step 6: Final answer
    x = 47,059.83

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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.