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Finding the Fourth Proportional to 65,121.20, 97,827.60 and 62,642.60

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Solution

The fourth proportional to 65,121.20, 97,827.60 and 62,642.60 is: 94,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.20 : 97,827.60 = 62,642.60 : x
  2. Step 2: Convert to fraction form
    65,121.20/97,827.60 = 62,642.60/x
  3. Step 3: Cross multiply
    65,121.20x = 97,827.60 × 62,642.60
  4. Step 4: Simplify right side
    65,121.20x = 6,128,175,215.76
  5. Step 5: Solve for x
    x = 6,128,175,215.76/65,121.20
  6. Step 6: Final answer
    x = 94,104.15

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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.