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Finding the Fourth Proportional to 55,552, 76,661.76 and 30,401.50

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Solution

The fourth proportional to 55,552, 76,661.76 and 30,401.50 is: 41,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,552 : 76,661.76 = 30,401.50 : x
  2. Step 2: Convert to fraction form
    55,552/76,661.76 = 30,401.50/x
  3. Step 3: Cross multiply
    55,552x = 76,661.76 × 30,401.50
  4. Step 4: Simplify right side
    55,552x = 2,330,632,496.64
  5. Step 5: Solve for x
    x = 2,330,632,496.64/55,552
  6. Step 6: Final answer
    x = 41,954.07

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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.