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Finding the Fourth Proportional to 60,162, 90,243 and 16,386

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Solution

The fourth proportional to 60,162, 90,243 and 16,386 is: 24,579

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,162 : 90,243 = 16,386 : x
  2. Step 2: Convert to fraction form
    60,162/90,243 = 16,386/x
  3. Step 3: Cross multiply
    60,162x = 90,243 × 16,386
  4. Step 4: Simplify right side
    60,162x = 1,478,721,798
  5. Step 5: Solve for x
    x = 1,478,721,798/60,162
  6. Step 6: Final answer
    x = 24,579

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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.