Home / 55,172.72-76,126.82-36,080.48

Finding the Fourth Proportional to 55,172.72, 76,126.82 and 36,080.48

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Solution

The fourth proportional to 55,172.72, 76,126.82 and 36,080.48 is: 49,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.72 : 76,126.82 = 36,080.48 : x
  2. Step 2: Convert to fraction form
    55,172.72/76,126.82 = 36,080.48/x
  3. Step 3: Cross multiply
    55,172.72x = 76,126.82 × 36,080.48
  4. Step 4: Simplify right side
    55,172.72x = 2,746,692,206.47
  5. Step 5: Solve for x
    x = 2,746,692,206.47/55,172.72
  6. Step 6: Final answer
    x = 49,783.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.