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Finding the Fourth Proportional to 40,102.58, 60,116.04 and 13,788.92

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Solution

The fourth proportional to 40,102.58, 60,116.04 and 13,788.92 is: 20,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,102.58 : 60,116.04 = 13,788.92 : x
  2. Step 2: Convert to fraction form
    40,102.58/60,116.04 = 13,788.92/x
  3. Step 3: Cross multiply
    40,102.58x = 60,116.04 × 13,788.92
  4. Step 4: Simplify right side
    40,102.58x = 828,935,266.28
  5. Step 5: Solve for x
    x = 828,935,266.28/40,102.58
  6. Step 6: Final answer
    x = 20,670.37

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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.