Home / 75,424.64-104,134.34-67,344.35

Finding the Fourth Proportional to 75,424.64, 104,134.34 and 67,344.35

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Solution

The fourth proportional to 75,424.64, 104,134.34 and 67,344.35 is: 92,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,424.64 : 104,134.34 = 67,344.35 : x
  2. Step 2: Convert to fraction form
    75,424.64/104,134.34 = 67,344.35/x
  3. Step 3: Cross multiply
    75,424.64x = 104,134.34 × 67,344.35
  4. Step 4: Simplify right side
    75,424.64x = 7,012,859,087.67
  5. Step 5: Solve for x
    x = 7,012,859,087.67/75,424.64
  6. Step 6: Final answer
    x = 92,978.36

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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.