Home / 53,771.36-80,631.60-18,706.64

Finding the Fourth Proportional to 53,771.36, 80,631.60 and 18,706.64

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Solution

The fourth proportional to 53,771.36, 80,631.60 and 18,706.64 is: 28,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,771.36 : 80,631.60 = 18,706.64 : x
  2. Step 2: Convert to fraction form
    53,771.36/80,631.60 = 18,706.64/x
  3. Step 3: Cross multiply
    53,771.36x = 80,631.60 × 18,706.64
  4. Step 4: Simplify right side
    53,771.36x = 1,508,346,313.82
  5. Step 5: Solve for x
    x = 1,508,346,313.82/53,771.36
  6. Step 6: Final answer
    x = 28,051.11

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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.