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Finding the Fourth Proportional to 66,803.91, 100,211.13 and 22,430.49

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Solution

The fourth proportional to 66,803.91, 100,211.13 and 22,430.49 is: 33,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,803.91 : 100,211.13 = 22,430.49 : x
  2. Step 2: Convert to fraction form
    66,803.91/100,211.13 = 22,430.49/x
  3. Step 3: Cross multiply
    66,803.91x = 100,211.13 × 22,430.49
  4. Step 4: Simplify right side
    66,803.91x = 2,247,784,749.35
  5. Step 5: Solve for x
    x = 2,247,784,749.35/66,803.91
  6. Step 6: Final answer
    x = 33,647.50

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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.