Home / 75,318.36-103,939-41,784.36

Finding the Fourth Proportional to 75,318.36, 103,939 and 41,784.36

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Solution

The fourth proportional to 75,318.36, 103,939 and 41,784.36 is: 57,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,318.36 : 103,939 = 41,784.36 : x
  2. Step 2: Convert to fraction form
    75,318.36/103,939 = 41,784.36/x
  3. Step 3: Cross multiply
    75,318.36x = 103,939 × 41,784.36
  4. Step 4: Simplify right side
    75,318.36x = 4,343,024,594.04
  5. Step 5: Solve for x
    x = 4,343,024,594.04/75,318.36
  6. Step 6: Final answer
    x = 57,662.23

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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.