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Finding the Fourth Proportional to 55,551.50, 76,661.07 and 30,401

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Solution

The fourth proportional to 55,551.50, 76,661.07 and 30,401 is: 41,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,551.50 : 76,661.07 = 30,401 : x
  2. Step 2: Convert to fraction form
    55,551.50/76,661.07 = 30,401/x
  3. Step 3: Cross multiply
    55,551.50x = 76,661.07 × 30,401
  4. Step 4: Simplify right side
    55,551.50x = 2,330,573,189.07
  5. Step 5: Solve for x
    x = 2,330,573,189.07/55,551.50
  6. Step 6: Final answer
    x = 41,953.38

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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.