Home / 70,975.20-106,422.30-26,603.40

Finding the Fourth Proportional to 70,975.20, 106,422.30 and 26,603.40

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Solution

The fourth proportional to 70,975.20, 106,422.30 and 26,603.40 is: 39,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,975.20 : 106,422.30 = 26,603.40 : x
  2. Step 2: Convert to fraction form
    70,975.20/106,422.30 = 26,603.40/x
  3. Step 3: Cross multiply
    70,975.20x = 106,422.30 × 26,603.40
  4. Step 4: Simplify right side
    70,975.20x = 2,831,195,015.82
  5. Step 5: Solve for x
    x = 2,831,195,015.82/70,975.20
  6. Step 6: Final answer
    x = 39,889.92

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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.