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Finding the Fourth Proportional to 77,612.49, 116,415.50 and 22,208.49

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Solution

The fourth proportional to 77,612.49, 116,415.50 and 22,208.49 is: 33,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.49 : 116,415.50 = 22,208.49 : x
  2. Step 2: Convert to fraction form
    77,612.49/116,415.50 = 22,208.49/x
  3. Step 3: Cross multiply
    77,612.49x = 116,415.50 × 22,208.49
  4. Step 4: Simplify right side
    77,612.49x = 2,585,412,356.55
  5. Step 5: Solve for x
    x = 2,585,412,356.55/77,612.49
  6. Step 6: Final answer
    x = 33,311.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.