Home / 86,907.20-130,363.23-30,739.37

Finding the Fourth Proportional to 86,907.20, 130,363.23 and 30,739.37

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Solution

The fourth proportional to 86,907.20, 130,363.23 and 30,739.37 is: 46,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907.20 : 130,363.23 = 30,739.37 : x
  2. Step 2: Convert to fraction form
    86,907.20/130,363.23 = 30,739.37/x
  3. Step 3: Cross multiply
    86,907.20x = 130,363.23 × 30,739.37
  4. Step 4: Simplify right side
    86,907.20x = 4,007,283,561.37
  5. Step 5: Solve for x
    x = 4,007,283,561.37/86,907.20
  6. Step 6: Final answer
    x = 46,109.91

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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.