Home / 75,168.07-103,636.33-53,683.56

Finding the Fourth Proportional to 75,168.07, 103,636.33 and 53,683.56

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Solution

The fourth proportional to 75,168.07, 103,636.33 and 53,683.56 is: 74,015.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,168.07 : 103,636.33 = 53,683.56 : x
  2. Step 2: Convert to fraction form
    75,168.07/103,636.33 = 53,683.56/x
  3. Step 3: Cross multiply
    75,168.07x = 103,636.33 × 53,683.56
  4. Step 4: Simplify right side
    75,168.07x = 5,563,567,005.53
  5. Step 5: Solve for x
    x = 5,563,567,005.53/75,168.07
  6. Step 6: Final answer
    x = 74,015.03

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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.