Home / 55,273.84-76,278.09-31,408.45

Finding the Fourth Proportional to 55,273.84, 76,278.09 and 31,408.45

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Solution

The fourth proportional to 55,273.84, 76,278.09 and 31,408.45 is: 43,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,273.84 : 76,278.09 = 31,408.45 : x
  2. Step 2: Convert to fraction form
    55,273.84/76,278.09 = 31,408.45/x
  3. Step 3: Cross multiply
    55,273.84x = 76,278.09 × 31,408.45
  4. Step 4: Simplify right side
    55,273.84x = 2,395,776,575.86
  5. Step 5: Solve for x
    x = 2,395,776,575.86/55,273.84
  6. Step 6: Final answer
    x = 43,343.77

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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.