Home / 86,113.01-118,833.93-49,811.78

Finding the Fourth Proportional to 86,113.01, 118,833.93 and 49,811.78

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Solution

The fourth proportional to 86,113.01, 118,833.93 and 49,811.78 is: 68,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,113.01 : 118,833.93 = 49,811.78 : x
  2. Step 2: Convert to fraction form
    86,113.01/118,833.93 = 49,811.78/x
  3. Step 3: Cross multiply
    86,113.01x = 118,833.93 × 49,811.78
  4. Step 4: Simplify right side
    86,113.01x = 5,919,328,983.53
  5. Step 5: Solve for x
    x = 5,919,328,983.53/86,113.01
  6. Step 6: Final answer
    x = 68,739.08

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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.