Home / 45,559.81-68,340.32-15,978.51

Finding the Fourth Proportional to 45,559.81, 68,340.32 and 15,978.51

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Solution

The fourth proportional to 45,559.81, 68,340.32 and 15,978.51 is: 23,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,559.81 : 68,340.32 = 15,978.51 : x
  2. Step 2: Convert to fraction form
    45,559.81/68,340.32 = 15,978.51/x
  3. Step 3: Cross multiply
    45,559.81x = 68,340.32 × 15,978.51
  4. Step 4: Simplify right side
    45,559.81x = 1,091,976,556.43
  5. Step 5: Solve for x
    x = 1,091,976,556.43/45,559.81
  6. Step 6: Final answer
    x = 23,967.98

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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.