Home / 70,829.40-106,244.10-20,910.18

Finding the Fourth Proportional to 70,829.40, 106,244.10 and 20,910.18

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Solution

The fourth proportional to 70,829.40, 106,244.10 and 20,910.18 is: 31,365.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,829.40 : 106,244.10 = 20,910.18 : x
  2. Step 2: Convert to fraction form
    70,829.40/106,244.10 = 20,910.18/x
  3. Step 3: Cross multiply
    70,829.40x = 106,244.10 × 20,910.18
  4. Step 4: Simplify right side
    70,829.40x = 2,221,583,254.94
  5. Step 5: Solve for x
    x = 2,221,583,254.94/70,829.40
  6. Step 6: Final answer
    x = 31,365.27

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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.