Home / 85,585.15-118,107.89-47,859.31

Finding the Fourth Proportional to 85,585.15, 118,107.89 and 47,859.31

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Solution

The fourth proportional to 85,585.15, 118,107.89 and 47,859.31 is: 66,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,585.15 : 118,107.89 = 47,859.31 : x
  2. Step 2: Convert to fraction form
    85,585.15/118,107.89 = 47,859.31/x
  3. Step 3: Cross multiply
    85,585.15x = 118,107.89 × 47,859.31
  4. Step 4: Simplify right side
    85,585.15x = 5,652,562,120.96
  5. Step 5: Solve for x
    x = 5,652,562,120.96/85,585.15
  6. Step 6: Final answer
    x = 66,046.06

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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.