Home / 55,355.04-76,391.64-31,485.15

Finding the Fourth Proportional to 55,355.04, 76,391.64 and 31,485.15

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Solution

The fourth proportional to 55,355.04, 76,391.64 and 31,485.15 is: 43,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.04 : 76,391.64 = 31,485.15 : x
  2. Step 2: Convert to fraction form
    55,355.04/76,391.64 = 31,485.15/x
  3. Step 3: Cross multiply
    55,355.04x = 76,391.64 × 31,485.15
  4. Step 4: Simplify right side
    55,355.04x = 2,405,202,244.15
  5. Step 5: Solve for x
    x = 2,405,202,244.15/55,355.04
  6. Step 6: Final answer
    x = 43,450.47

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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.