Home / 72,637.84-100,234.83-40,812.04

Finding the Fourth Proportional to 72,637.84, 100,234.83 and 40,812.04

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Solution

The fourth proportional to 72,637.84, 100,234.83 and 40,812.04 is: 56,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637.84 : 100,234.83 = 40,812.04 : x
  2. Step 2: Convert to fraction form
    72,637.84/100,234.83 = 40,812.04/x
  3. Step 3: Cross multiply
    72,637.84x = 100,234.83 × 40,812.04
  4. Step 4: Simplify right side
    72,637.84x = 4,090,787,891.35
  5. Step 5: Solve for x
    x = 4,090,787,891.35/72,637.84
  6. Step 6: Final answer
    x = 56,317.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.