Home / 86,860.77-130,353.45-36,975.90

Finding the Fourth Proportional to 86,860.77, 130,353.45 and 36,975.90

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Solution

The fourth proportional to 86,860.77, 130,353.45 and 36,975.90 is: 55,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.77 : 130,353.45 = 36,975.90 : x
  2. Step 2: Convert to fraction form
    86,860.77/130,353.45 = 36,975.90/x
  3. Step 3: Cross multiply
    86,860.77x = 130,353.45 × 36,975.90
  4. Step 4: Simplify right side
    86,860.77x = 4,819,936,131.86
  5. Step 5: Solve for x
    x = 4,819,936,131.86/86,860.77
  6. Step 6: Final answer
    x = 55,490.37

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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.