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Finding the Fourth Proportional to 48,207.88, 72,362.94 and 42,697

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Solution

The fourth proportional to 48,207.88, 72,362.94 and 42,697 is: 64,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,207.88 : 72,362.94 = 42,697 : x
  2. Step 2: Convert to fraction form
    48,207.88/72,362.94 = 42,697/x
  3. Step 3: Cross multiply
    48,207.88x = 72,362.94 × 42,697
  4. Step 4: Simplify right side
    48,207.88x = 3,089,680,449.18
  5. Step 5: Solve for x
    x = 3,089,680,449.18/48,207.88
  6. Step 6: Final answer
    x = 64,090.78

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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.