Home / 40,728.72-60,982.20-30,838.08

Finding the Fourth Proportional to 40,728.72, 60,982.20 and 30,838.08

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Solution

The fourth proportional to 40,728.72, 60,982.20 and 30,838.08 is: 46,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,728.72 : 60,982.20 = 30,838.08 : x
  2. Step 2: Convert to fraction form
    40,728.72/60,982.20 = 30,838.08/x
  3. Step 3: Cross multiply
    40,728.72x = 60,982.20 × 30,838.08
  4. Step 4: Simplify right side
    40,728.72x = 1,880,573,962.18
  5. Step 5: Solve for x
    x = 1,880,573,962.18/40,728.72
  6. Step 6: Final answer
    x = 46,173.17

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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.