Home / 70,916.21-97,868.74-39,085.03

Finding the Fourth Proportional to 70,916.21, 97,868.74 and 39,085.03

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Solution

The fourth proportional to 70,916.21, 97,868.74 and 39,085.03 is: 53,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,916.21 : 97,868.74 = 39,085.03 : x
  2. Step 2: Convert to fraction form
    70,916.21/97,868.74 = 39,085.03/x
  3. Step 3: Cross multiply
    70,916.21x = 97,868.74 × 39,085.03
  4. Step 4: Simplify right side
    70,916.21x = 3,825,202,149.62
  5. Step 5: Solve for x
    x = 3,825,202,149.62/70,916.21
  6. Step 6: Final answer
    x = 53,939.75

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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.