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Finding the Fourth Proportional to 66,004.40, 99,006.60 and 52,007.60

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Solution

The fourth proportional to 66,004.40, 99,006.60 and 52,007.60 is: 78,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,004.40 : 99,006.60 = 52,007.60 : x
  2. Step 2: Convert to fraction form
    66,004.40/99,006.60 = 52,007.60/x
  3. Step 3: Cross multiply
    66,004.40x = 99,006.60 × 52,007.60
  4. Step 4: Simplify right side
    66,004.40x = 5,149,095,650.16
  5. Step 5: Solve for x
    x = 5,149,095,650.16/66,004.40
  6. Step 6: Final answer
    x = 78,011.40

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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.