Home / 53,717.72-80,576.60-20,430.09

Finding the Fourth Proportional to 53,717.72, 80,576.60 and 20,430.09

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Solution

The fourth proportional to 53,717.72, 80,576.60 and 20,430.09 is: 30,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,717.72 : 80,576.60 = 20,430.09 : x
  2. Step 2: Convert to fraction form
    53,717.72/80,576.60 = 20,430.09/x
  3. Step 3: Cross multiply
    53,717.72x = 80,576.60 × 20,430.09
  4. Step 4: Simplify right side
    53,717.72x = 1,646,187,087.74
  5. Step 5: Solve for x
    x = 1,646,187,087.74/53,717.72
  6. Step 6: Final answer
    x = 30,645.14

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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.