Home / 70,331.07-97,059.57-40,121.31

Finding the Fourth Proportional to 70,331.07, 97,059.57 and 40,121.31

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Solution

The fourth proportional to 70,331.07, 97,059.57 and 40,121.31 is: 55,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,331.07 : 97,059.57 = 40,121.31 : x
  2. Step 2: Convert to fraction form
    70,331.07/97,059.57 = 40,121.31/x
  3. Step 3: Cross multiply
    70,331.07x = 97,059.57 × 40,121.31
  4. Step 4: Simplify right side
    70,331.07x = 3,894,157,096.44
  5. Step 5: Solve for x
    x = 3,894,157,096.44/70,331.07
  6. Step 6: Final answer
    x = 55,368.94

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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.