Home / 53,953.68-80,931.30-20,675.43

Finding the Fourth Proportional to 53,953.68, 80,931.30 and 20,675.43

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Solution

The fourth proportional to 53,953.68, 80,931.30 and 20,675.43 is: 31,013.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,953.68 : 80,931.30 = 20,675.43 : x
  2. Step 2: Convert to fraction form
    53,953.68/80,931.30 = 20,675.43/x
  3. Step 3: Cross multiply
    53,953.68x = 80,931.30 × 20,675.43
  4. Step 4: Simplify right side
    53,953.68x = 1,673,289,427.96
  5. Step 5: Solve for x
    x = 1,673,289,427.96/53,953.68
  6. Step 6: Final answer
    x = 31,013.44

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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.