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Finding the Fourth Proportional to 64,102.56, 95,985.60 and 45,280.80

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Solution

The fourth proportional to 64,102.56, 95,985.60 and 45,280.80 is: 67,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,102.56 : 95,985.60 = 45,280.80 : x
  2. Step 2: Convert to fraction form
    64,102.56/95,985.60 = 45,280.80/x
  3. Step 3: Cross multiply
    64,102.56x = 95,985.60 × 45,280.80
  4. Step 4: Simplify right side
    64,102.56x = 4,346,304,756.48
  5. Step 5: Solve for x
    x = 4,346,304,756.48/64,102.56
  6. Step 6: Final answer
    x = 67,802.36

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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.