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Finding the Fourth Proportional to 55,552, 76,661.82 and 30,401.56

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Solution

The fourth proportional to 55,552, 76,661.82 and 30,401.56 is: 41,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,552 : 76,661.82 = 30,401.56 : x
  2. Step 2: Convert to fraction form
    55,552/76,661.82 = 30,401.56/x
  3. Step 3: Cross multiply
    55,552x = 76,661.82 × 30,401.56
  4. Step 4: Simplify right side
    55,552x = 2,330,638,920.44
  5. Step 5: Solve for x
    x = 2,330,638,920.44/55,552
  6. Step 6: Final answer
    x = 41,954.19

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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.