Home / 70,977.70-97,949.94-39,147.76

Finding the Fourth Proportional to 70,977.70, 97,949.94 and 39,147.76

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Solution

The fourth proportional to 70,977.70, 97,949.94 and 39,147.76 is: 54,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,977.70 : 97,949.94 = 39,147.76 : x
  2. Step 2: Convert to fraction form
    70,977.70/97,949.94 = 39,147.76/x
  3. Step 3: Cross multiply
    70,977.70x = 97,949.94 × 39,147.76
  4. Step 4: Simplify right side
    70,977.70x = 3,834,520,743.13
  5. Step 5: Solve for x
    x = 3,834,520,743.13/70,977.70
  6. Step 6: Final answer
    x = 54,024.30

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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.