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Finding the Fourth Proportional to 66,929.60, 100,394.40 and 22,541.60

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Solution

The fourth proportional to 66,929.60, 100,394.40 and 22,541.60 is: 33,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929.60 : 100,394.40 = 22,541.60 : x
  2. Step 2: Convert to fraction form
    66,929.60/100,394.40 = 22,541.60/x
  3. Step 3: Cross multiply
    66,929.60x = 100,394.40 × 22,541.60
  4. Step 4: Simplify right side
    66,929.60x = 2,263,050,407.04
  5. Step 5: Solve for x
    x = 2,263,050,407.04/66,929.60
  6. Step 6: Final answer
    x = 33,812.40

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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.