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Finding the Fourth Proportional to 40,479.95, 60,714.44 and 10,899.56

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Solution

The fourth proportional to 40,479.95, 60,714.44 and 10,899.56 is: 16,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479.95 : 60,714.44 = 10,899.56 : x
  2. Step 2: Convert to fraction form
    40,479.95/60,714.44 = 10,899.56/x
  3. Step 3: Cross multiply
    40,479.95x = 60,714.44 × 10,899.56
  4. Step 4: Simplify right side
    40,479.95x = 661,760,323.58
  5. Step 5: Solve for x
    x = 661,760,323.58/40,479.95
  6. Step 6: Final answer
    x = 16,347.86

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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.