Home / 55,127.78-76,076.33-31,254.45

Finding the Fourth Proportional to 55,127.78, 76,076.33 and 31,254.45

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Solution

The fourth proportional to 55,127.78, 76,076.33 and 31,254.45 is: 43,131.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,127.78 : 76,076.33 = 31,254.45 : x
  2. Step 2: Convert to fraction form
    55,127.78/76,076.33 = 31,254.45/x
  3. Step 3: Cross multiply
    55,127.78x = 76,076.33 × 31,254.45
  4. Step 4: Simplify right side
    55,127.78x = 2,377,724,026.78
  5. Step 5: Solve for x
    x = 2,377,724,026.78/55,127.78
  6. Step 6: Final answer
    x = 43,131.14

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1.5x scale

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.