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Finding the Fourth Proportional to 67,401.60, 101,102.40 and 47,718.60

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Solution

The fourth proportional to 67,401.60, 101,102.40 and 47,718.60 is: 71,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,401.60 : 101,102.40 = 47,718.60 : x
  2. Step 2: Convert to fraction form
    67,401.60/101,102.40 = 47,718.60/x
  3. Step 3: Cross multiply
    67,401.60x = 101,102.40 × 47,718.60
  4. Step 4: Simplify right side
    67,401.60x = 4,824,464,984.64
  5. Step 5: Solve for x
    x = 4,824,464,984.64/67,401.60
  6. Step 6: Final answer
    x = 71,577.90

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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.