Home / 76,667.96-115,021.07-26,748.47

Finding the Fourth Proportional to 76,667.96, 115,021.07 and 26,748.47

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Solution

The fourth proportional to 76,667.96, 115,021.07 and 26,748.47 is: 40,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,667.96 : 115,021.07 = 26,748.47 : x
  2. Step 2: Convert to fraction form
    76,667.96/115,021.07 = 26,748.47/x
  3. Step 3: Cross multiply
    76,667.96x = 115,021.07 × 26,748.47
  4. Step 4: Simplify right side
    76,667.96x = 3,076,637,994.69
  5. Step 5: Solve for x
    x = 3,076,637,994.69/76,667.96
  6. Step 6: Final answer
    x = 40,129.38

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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.