Home / 45,879.64-68,772.98-31,090.05

Finding the Fourth Proportional to 45,879.64, 68,772.98 and 31,090.05

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Solution

The fourth proportional to 45,879.64, 68,772.98 and 31,090.05 is: 46,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,879.64 : 68,772.98 = 31,090.05 : x
  2. Step 2: Convert to fraction form
    45,879.64/68,772.98 = 31,090.05/x
  3. Step 3: Cross multiply
    45,879.64x = 68,772.98 × 31,090.05
  4. Step 4: Simplify right side
    45,879.64x = 2,138,155,464.57
  5. Step 5: Solve for x
    x = 2,138,155,464.57/45,879.64
  6. Step 6: Final answer
    x = 46,603.58

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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.