Home / 85,242.06-117,634.32-46,479.60

Finding the Fourth Proportional to 85,242.06, 117,634.32 and 46,479.60

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Solution

The fourth proportional to 85,242.06, 117,634.32 and 46,479.60 is: 64,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,242.06 : 117,634.32 = 46,479.60 : x
  2. Step 2: Convert to fraction form
    85,242.06/117,634.32 = 46,479.60/x
  3. Step 3: Cross multiply
    85,242.06x = 117,634.32 × 46,479.60
  4. Step 4: Simplify right side
    85,242.06x = 5,467,596,139.87
  5. Step 5: Solve for x
    x = 5,467,596,139.87/85,242.06
  6. Step 6: Final answer
    x = 64,142.00

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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.