Home / 55,424.78-76,486.14-30,274.28

Finding the Fourth Proportional to 55,424.78, 76,486.14 and 30,274.28

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Solution

The fourth proportional to 55,424.78, 76,486.14 and 30,274.28 is: 41,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424.78 : 76,486.14 = 30,274.28 : x
  2. Step 2: Convert to fraction form
    55,424.78/76,486.14 = 30,274.28/x
  3. Step 3: Cross multiply
    55,424.78x = 76,486.14 × 30,274.28
  4. Step 4: Simplify right side
    55,424.78x = 2,315,562,818.48
  5. Step 5: Solve for x
    x = 2,315,562,818.48/55,424.78
  6. Step 6: Final answer
    x = 41,778.48

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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.