Home / 70,974.83-97,945.22-39,143.75

Finding the Fourth Proportional to 70,974.83, 97,945.22 and 39,143.75

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Solution

The fourth proportional to 70,974.83, 97,945.22 and 39,143.75 is: 54,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,974.83 : 97,945.22 = 39,143.75 : x
  2. Step 2: Convert to fraction form
    70,974.83/97,945.22 = 39,143.75/x
  3. Step 3: Cross multiply
    70,974.83x = 97,945.22 × 39,143.75
  4. Step 4: Simplify right side
    70,974.83x = 3,833,942,813.51
  5. Step 5: Solve for x
    x = 3,833,942,813.51/70,974.83
  6. Step 6: Final answer
    x = 54,018.34

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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.