Home / 70,939.18-97,896.83-39,109.22

Finding the Fourth Proportional to 70,939.18, 97,896.83 and 39,109.22

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Solution

The fourth proportional to 70,939.18, 97,896.83 and 39,109.22 is: 53,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.18 : 97,896.83 = 39,109.22 : x
  2. Step 2: Convert to fraction form
    70,939.18/97,896.83 = 39,109.22/x
  3. Step 3: Cross multiply
    70,939.18x = 97,896.83 × 39,109.22
  4. Step 4: Simplify right side
    70,939.18x = 3,828,668,343.86
  5. Step 5: Solve for x
    x = 3,828,668,343.86/70,939.18
  6. Step 6: Final answer
    x = 53,971.14

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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.