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Finding the Fourth Proportional to 60,345.76, 90,518.64 and 18,796

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Solution

The fourth proportional to 60,345.76, 90,518.64 and 18,796 is: 28,194

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,345.76 : 90,518.64 = 18,796 : x
  2. Step 2: Convert to fraction form
    60,345.76/90,518.64 = 18,796/x
  3. Step 3: Cross multiply
    60,345.76x = 90,518.64 × 18,796
  4. Step 4: Simplify right side
    60,345.76x = 1,701,388,357.44
  5. Step 5: Solve for x
    x = 1,701,388,357.44/60,345.76
  6. Step 6: Final answer
    x = 28,194

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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.