Home / 76,743.88-115,130.40-26,838.16

Finding the Fourth Proportional to 76,743.88, 115,130.40 and 26,838.16

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Solution

The fourth proportional to 76,743.88, 115,130.40 and 26,838.16 is: 40,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,743.88 : 115,130.40 = 26,838.16 : x
  2. Step 2: Convert to fraction form
    76,743.88/115,130.40 = 26,838.16/x
  3. Step 3: Cross multiply
    76,743.88x = 115,130.40 × 26,838.16
  4. Step 4: Simplify right side
    76,743.88x = 3,089,888,096.06
  5. Step 5: Solve for x
    x = 3,089,888,096.06/76,743.88
  6. Step 6: Final answer
    x = 40,262.34

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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.