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Finding the Fourth Proportional to 66,850.24, 100,276.80 and 22,478.40

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Solution

The fourth proportional to 66,850.24, 100,276.80 and 22,478.40 is: 33,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,850.24 : 100,276.80 = 22,478.40 : x
  2. Step 2: Convert to fraction form
    66,850.24/100,276.80 = 22,478.40/x
  3. Step 3: Cross multiply
    66,850.24x = 100,276.80 × 22,478.40
  4. Step 4: Simplify right side
    66,850.24x = 2,254,062,021.12
  5. Step 5: Solve for x
    x = 2,254,062,021.12/66,850.24
  6. Step 6: Final answer
    x = 33,718.08

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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.