Home / 70,942.77-97,901.69-39,112.81

Finding the Fourth Proportional to 70,942.77, 97,901.69 and 39,112.81

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Solution

The fourth proportional to 70,942.77, 97,901.69 and 39,112.81 is: 53,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,942.77 : 97,901.69 = 39,112.81 : x
  2. Step 2: Convert to fraction form
    70,942.77/97,901.69 = 39,112.81/x
  3. Step 3: Cross multiply
    70,942.77x = 97,901.69 × 39,112.81
  4. Step 4: Simplify right side
    70,942.77x = 3,829,209,759.33
  5. Step 5: Solve for x
    x = 3,829,209,759.33/70,942.77
  6. Step 6: Final answer
    x = 53,976.04

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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.