Home / 86,750.03-130,137.21-26,783.39

Finding the Fourth Proportional to 86,750.03, 130,137.21 and 26,783.39

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Solution

The fourth proportional to 86,750.03, 130,137.21 and 26,783.39 is: 40,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,750.03 : 130,137.21 = 26,783.39 : x
  2. Step 2: Convert to fraction form
    86,750.03/130,137.21 = 26,783.39/x
  3. Step 3: Cross multiply
    86,750.03x = 130,137.21 × 26,783.39
  4. Step 4: Simplify right side
    86,750.03x = 3,485,514,998.26
  5. Step 5: Solve for x
    x = 3,485,514,998.26/86,750.03
  6. Step 6: Final answer
    x = 40,178.84

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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.