Home / 70,938.99-97,896.57-39,109.03

Finding the Fourth Proportional to 70,938.99, 97,896.57 and 39,109.03

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Solution

The fourth proportional to 70,938.99, 97,896.57 and 39,109.03 is: 53,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,938.99 : 97,896.57 = 39,109.03 : x
  2. Step 2: Convert to fraction form
    70,938.99/97,896.57 = 39,109.03/x
  3. Step 3: Cross multiply
    70,938.99x = 97,896.57 × 39,109.03
  4. Step 4: Simplify right side
    70,938.99x = 3,828,639,868.74
  5. Step 5: Solve for x
    x = 3,828,639,868.74/70,938.99
  6. Step 6: Final answer
    x = 53,970.88

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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.