Home / 45,287.10-67,936.73-18,985.59

Finding the Fourth Proportional to 45,287.10, 67,936.73 and 18,985.59

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Solution

The fourth proportional to 45,287.10, 67,936.73 and 18,985.59 is: 28,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,287.10 : 67,936.73 = 18,985.59 : x
  2. Step 2: Convert to fraction form
    45,287.10/67,936.73 = 18,985.59/x
  3. Step 3: Cross multiply
    45,287.10x = 67,936.73 × 18,985.59
  4. Step 4: Simplify right side
    45,287.10x = 1,289,818,806.79
  5. Step 5: Solve for x
    x = 1,289,818,806.79/45,287.10
  6. Step 6: Final answer
    x = 28,480.93

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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.