Home / 70,904.09-97,847.37-39,072.30

Finding the Fourth Proportional to 70,904.09, 97,847.37 and 39,072.30

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Solution

The fourth proportional to 70,904.09, 97,847.37 and 39,072.30 is: 53,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,904.09 : 97,847.37 = 39,072.30 : x
  2. Step 2: Convert to fraction form
    70,904.09/97,847.37 = 39,072.30/x
  3. Step 3: Cross multiply
    70,904.09x = 97,847.37 × 39,072.30
  4. Step 4: Simplify right side
    70,904.09x = 3,823,121,794.85
  5. Step 5: Solve for x
    x = 3,823,121,794.85/70,904.09
  6. Step 6: Final answer
    x = 53,919.63

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1.5x scale

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.