Home / 71,737.37-98,997.49-39,905.59

Finding the Fourth Proportional to 71,737.37, 98,997.49 and 39,905.59

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Solution

The fourth proportional to 71,737.37, 98,997.49 and 39,905.59 is: 55,069.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,737.37 : 98,997.49 = 39,905.59 : x
  2. Step 2: Convert to fraction form
    71,737.37/98,997.49 = 39,905.59/x
  3. Step 3: Cross multiply
    71,737.37x = 98,997.49 × 39,905.59
  4. Step 4: Simplify right side
    71,737.37x = 3,950,553,246.97
  5. Step 5: Solve for x
    x = 3,950,553,246.97/71,737.37
  6. Step 6: Final answer
    x = 55,069.67

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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.