Home / 45,445.04-68,134.75-19,135.43

Finding the Fourth Proportional to 45,445.04, 68,134.75 and 19,135.43

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Solution

The fourth proportional to 45,445.04, 68,134.75 and 19,135.43 is: 28,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,445.04 : 68,134.75 = 19,135.43 : x
  2. Step 2: Convert to fraction form
    45,445.04/68,134.75 = 19,135.43/x
  3. Step 3: Cross multiply
    45,445.04x = 68,134.75 × 19,135.43
  4. Step 4: Simplify right side
    45,445.04x = 1,303,787,739.19
  5. Step 5: Solve for x
    x = 1,303,787,739.19/45,445.04
  6. Step 6: Final answer
    x = 28,689.33

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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.