Home / 77,491.58-116,222.04-21,317.18

Finding the Fourth Proportional to 77,491.58, 116,222.04 and 21,317.18

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Solution

The fourth proportional to 77,491.58, 116,222.04 and 21,317.18 is: 31,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,491.58 : 116,222.04 = 21,317.18 : x
  2. Step 2: Convert to fraction form
    77,491.58/116,222.04 = 21,317.18/x
  3. Step 3: Cross multiply
    77,491.58x = 116,222.04 × 21,317.18
  4. Step 4: Simplify right side
    77,491.58x = 2,477,525,565.54
  5. Step 5: Solve for x
    x = 2,477,525,565.54/77,491.58
  6. Step 6: Final answer
    x = 31,971.55

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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.