Home / 81,040.23-111,817.67-47,029.01

Finding the Fourth Proportional to 81,040.23, 111,817.67 and 47,029.01

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Solution

The fourth proportional to 81,040.23, 111,817.67 and 47,029.01 is: 64,889.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,040.23 : 111,817.67 = 47,029.01 : x
  2. Step 2: Convert to fraction form
    81,040.23/111,817.67 = 47,029.01/x
  3. Step 3: Cross multiply
    81,040.23x = 111,817.67 × 47,029.01
  4. Step 4: Simplify right side
    81,040.23x = 5,258,673,526.37
  5. Step 5: Solve for x
    x = 5,258,673,526.37/81,040.23
  6. Step 6: Final answer
    x = 64,889.67

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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.