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Finding the Fourth Proportional to 40,457, 60,685.42 and 10,874.84

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Solution

The fourth proportional to 40,457, 60,685.42 and 10,874.84 is: 16,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,457 : 60,685.42 = 10,874.84 : x
  2. Step 2: Convert to fraction form
    40,457/60,685.42 = 10,874.84/x
  3. Step 3: Cross multiply
    40,457x = 60,685.42 × 10,874.84
  4. Step 4: Simplify right side
    40,457x = 659,944,232.83
  5. Step 5: Solve for x
    x = 659,944,232.83/40,457
  6. Step 6: Final answer
    x = 16,312.24

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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.