Home / 70,918.13-97,867.23-39,086.30

Finding the Fourth Proportional to 70,918.13, 97,867.23 and 39,086.30

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Solution

The fourth proportional to 70,918.13, 97,867.23 and 39,086.30 is: 53,939.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,918.13 : 97,867.23 = 39,086.30 : x
  2. Step 2: Convert to fraction form
    70,918.13/97,867.23 = 39,086.30/x
  3. Step 3: Cross multiply
    70,918.13x = 97,867.23 × 39,086.30
  4. Step 4: Simplify right side
    70,918.13x = 3,825,267,911.95
  5. Step 5: Solve for x
    x = 3,825,267,911.95/70,918.13
  6. Step 6: Final answer
    x = 53,939.21

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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.