Home / 76,405.31-114,608.01-26,485.42

Finding the Fourth Proportional to 76,405.31, 114,608.01 and 26,485.42

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Solution

The fourth proportional to 76,405.31, 114,608.01 and 26,485.42 is: 39,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,405.31 : 114,608.01 = 26,485.42 : x
  2. Step 2: Convert to fraction form
    76,405.31/114,608.01 = 26,485.42/x
  3. Step 3: Cross multiply
    76,405.31x = 114,608.01 × 26,485.42
  4. Step 4: Simplify right side
    76,405.31x = 3,035,441,280.21
  5. Step 5: Solve for x
    x = 3,035,441,280.21/76,405.31
  6. Step 6: Final answer
    x = 39,728.15

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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.