Home / 71,190.36-98,237.82-39,358.96

Finding the Fourth Proportional to 71,190.36, 98,237.82 and 39,358.96

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Solution

The fourth proportional to 71,190.36, 98,237.82 and 39,358.96 is: 54,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.36 : 98,237.82 = 39,358.96 : x
  2. Step 2: Convert to fraction form
    71,190.36/98,237.82 = 39,358.96/x
  3. Step 3: Cross multiply
    71,190.36x = 98,237.82 × 39,358.96
  4. Step 4: Simplify right side
    71,190.36x = 3,866,538,427.87
  5. Step 5: Solve for x
    x = 3,866,538,427.87/71,190.36
  6. Step 6: Final answer
    x = 54,312.67

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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.