Home / 53,431.79-80,146.08-21,832.88

Finding the Fourth Proportional to 53,431.79, 80,146.08 and 21,832.88

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Solution

The fourth proportional to 53,431.79, 80,146.08 and 21,832.88 is: 32,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.79 : 80,146.08 = 21,832.88 : x
  2. Step 2: Convert to fraction form
    53,431.79/80,146.08 = 21,832.88/x
  3. Step 3: Cross multiply
    53,431.79x = 80,146.08 × 21,832.88
  4. Step 4: Simplify right side
    53,431.79x = 1,749,819,346.38
  5. Step 5: Solve for x
    x = 1,749,819,346.38/53,431.79
  6. Step 6: Final answer
    x = 32,748.66

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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.