Home / 70,971.36-97,944.96-39,140.32

Finding the Fourth Proportional to 70,971.36, 97,944.96 and 39,140.32

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Solution

The fourth proportional to 70,971.36, 97,944.96 and 39,140.32 is: 54,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,971.36 : 97,944.96 = 39,140.32 : x
  2. Step 2: Convert to fraction form
    70,971.36/97,944.96 = 39,140.32/x
  3. Step 3: Cross multiply
    70,971.36x = 97,944.96 × 39,140.32
  4. Step 4: Simplify right side
    70,971.36x = 3,833,597,076.79
  5. Step 5: Solve for x
    x = 3,833,597,076.79/70,971.36
  6. Step 6: Final answer
    x = 54,016.11

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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.