Home / 70,971.72-97,937.64-40,736.04

Finding the Fourth Proportional to 70,971.72, 97,937.64 and 40,736.04

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Solution

The fourth proportional to 70,971.72, 97,937.64 and 40,736.04 is: 56,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,971.72 : 97,937.64 = 40,736.04 : x
  2. Step 2: Convert to fraction form
    70,971.72/97,937.64 = 40,736.04/x
  3. Step 3: Cross multiply
    70,971.72x = 97,937.64 × 40,736.04
  4. Step 4: Simplify right side
    70,971.72x = 3,989,591,620.55
  5. Step 5: Solve for x
    x = 3,989,591,620.55/70,971.72
  6. Step 6: Final answer
    x = 56,213.82

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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.