Home / 83,399.40-115,090.67-45,158.56

Finding the Fourth Proportional to 83,399.40, 115,090.67 and 45,158.56

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Solution

The fourth proportional to 83,399.40, 115,090.67 and 45,158.56 is: 62,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,399.40 : 115,090.67 = 45,158.56 : x
  2. Step 2: Convert to fraction form
    83,399.40/115,090.67 = 45,158.56/x
  3. Step 3: Cross multiply
    83,399.40x = 115,090.67 × 45,158.56
  4. Step 4: Simplify right side
    83,399.40x = 5,197,328,751.80
  5. Step 5: Solve for x
    x = 5,197,328,751.80/83,399.40
  6. Step 6: Final answer
    x = 62,318.54

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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.