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Finding the Fourth Proportional to 70,141.62, 105,238.35 and 25,797.36

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Solution

The fourth proportional to 70,141.62, 105,238.35 and 25,797.36 is: 38,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,141.62 : 105,238.35 = 25,797.36 : x
  2. Step 2: Convert to fraction form
    70,141.62/105,238.35 = 25,797.36/x
  3. Step 3: Cross multiply
    70,141.62x = 105,238.35 × 25,797.36
  4. Step 4: Simplify right side
    70,141.62x = 2,714,871,600.76
  5. Step 5: Solve for x
    x = 2,714,871,600.76/70,141.62
  6. Step 6: Final answer
    x = 38,705.57

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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.