Home / 69,018.58-103,343.34-39,395.67

Finding the Fourth Proportional to 69,018.58, 103,343.34 and 39,395.67

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Solution

The fourth proportional to 69,018.58, 103,343.34 and 39,395.67 is: 58,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,018.58 : 103,343.34 = 39,395.67 : x
  2. Step 2: Convert to fraction form
    69,018.58/103,343.34 = 39,395.67/x
  3. Step 3: Cross multiply
    69,018.58x = 103,343.34 × 39,395.67
  4. Step 4: Simplify right side
    69,018.58x = 4,071,279,879.53
  5. Step 5: Solve for x
    x = 4,071,279,879.53/69,018.58
  6. Step 6: Final answer
    x = 58,988.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.