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Finding the Fourth Proportional to 66,002.30, 98,640.86 and 48,270.32

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Solution

The fourth proportional to 66,002.30, 98,640.86 and 48,270.32 is: 72,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,002.30 : 98,640.86 = 48,270.32 : x
  2. Step 2: Convert to fraction form
    66,002.30/98,640.86 = 48,270.32/x
  3. Step 3: Cross multiply
    66,002.30x = 98,640.86 × 48,270.32
  4. Step 4: Simplify right side
    66,002.30x = 4,761,425,142.72
  5. Step 5: Solve for x
    x = 4,761,425,142.72/66,002.30
  6. Step 6: Final answer
    x = 72,140.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.