Home / 53,161.17-79,758.69-15,721.47

Finding the Fourth Proportional to 53,161.17, 79,758.69 and 15,721.47

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Solution

The fourth proportional to 53,161.17, 79,758.69 and 15,721.47 is: 23,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,161.17 : 79,758.69 = 15,721.47 : x
  2. Step 2: Convert to fraction form
    53,161.17/79,758.69 = 15,721.47/x
  3. Step 3: Cross multiply
    53,161.17x = 79,758.69 × 15,721.47
  4. Step 4: Simplify right side
    53,161.17x = 1,253,923,852.07
  5. Step 5: Solve for x
    x = 1,253,923,852.07/53,161.17
  6. Step 6: Final answer
    x = 23,587.21

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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.