Home / 70,917.99-106,377.32-20,999.02

Finding the Fourth Proportional to 70,917.99, 106,377.32 and 20,999.02

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Solution

The fourth proportional to 70,917.99, 106,377.32 and 20,999.02 is: 31,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,917.99 : 106,377.32 = 20,999.02 : x
  2. Step 2: Convert to fraction form
    70,917.99/106,377.32 = 20,999.02/x
  3. Step 3: Cross multiply
    70,917.99x = 106,377.32 × 20,999.02
  4. Step 4: Simplify right side
    70,917.99x = 2,233,819,736.17
  5. Step 5: Solve for x
    x = 2,233,819,736.17/70,917.99
  6. Step 6: Final answer
    x = 31,498.64

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1.5x scale

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.