Home / 75,614.24-104,172.96-54,356.72

Finding the Fourth Proportional to 75,614.24, 104,172.96 and 54,356.72

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Solution

The fourth proportional to 75,614.24, 104,172.96 and 54,356.72 is: 74,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,614.24 : 104,172.96 = 54,356.72 : x
  2. Step 2: Convert to fraction form
    75,614.24/104,172.96 = 54,356.72/x
  3. Step 3: Cross multiply
    75,614.24x = 104,172.96 × 54,356.72
  4. Step 4: Simplify right side
    75,614.24x = 5,662,500,418.29
  5. Step 5: Solve for x
    x = 5,662,500,418.29/75,614.24
  6. Step 6: Final answer
    x = 74,886.69

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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.