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Finding the Fourth Proportional to 65,479.98, 98,219.99 and 18,732.86

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Solution

The fourth proportional to 65,479.98, 98,219.99 and 18,732.86 is: 28,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,479.98 : 98,219.99 = 18,732.86 : x
  2. Step 2: Convert to fraction form
    65,479.98/98,219.99 = 18,732.86/x
  3. Step 3: Cross multiply
    65,479.98x = 98,219.99 × 18,732.86
  4. Step 4: Simplify right side
    65,479.98x = 1,839,940,737.11
  5. Step 5: Solve for x
    x = 1,839,940,737.11/65,479.98
  6. Step 6: Final answer
    x = 28,099.29

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1.5x scale

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.