Home / 75,701.79-113,570.27-25,782.32

Finding the Fourth Proportional to 75,701.79, 113,570.27 and 25,782.32

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Solution

The fourth proportional to 75,701.79, 113,570.27 and 25,782.32 is: 38,679.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,701.79 : 113,570.27 = 25,782.32 : x
  2. Step 2: Convert to fraction form
    75,701.79/113,570.27 = 25,782.32/x
  3. Step 3: Cross multiply
    75,701.79x = 113,570.27 × 25,782.32
  4. Step 4: Simplify right side
    75,701.79x = 2,928,105,056.68
  5. Step 5: Solve for x
    x = 2,928,105,056.68/75,701.79
  6. Step 6: Final answer
    x = 38,679.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.