Home / 66,015.51-91,000.62-40,474.59

Finding the Fourth Proportional to 66,015.51, 91,000.62 and 40,474.59

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Solution

The fourth proportional to 66,015.51, 91,000.62 and 40,474.59 is: 55,793.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,015.51 : 91,000.62 = 40,474.59 : x
  2. Step 2: Convert to fraction form
    66,015.51/91,000.62 = 40,474.59/x
  3. Step 3: Cross multiply
    66,015.51x = 91,000.62 × 40,474.59
  4. Step 4: Simplify right side
    66,015.51x = 3,683,212,784.25
  5. Step 5: Solve for x
    x = 3,683,212,784.25/66,015.51
  6. Step 6: Final answer
    x = 55,793.14

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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.