Home / 45,156.23-67,701.54-18,868.49

Finding the Fourth Proportional to 45,156.23, 67,701.54 and 18,868.49

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Solution

The fourth proportional to 45,156.23, 67,701.54 and 18,868.49 is: 28,289.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,156.23 : 67,701.54 = 18,868.49 : x
  2. Step 2: Convert to fraction form
    45,156.23/67,701.54 = 18,868.49/x
  3. Step 3: Cross multiply
    45,156.23x = 67,701.54 × 18,868.49
  4. Step 4: Simplify right side
    45,156.23x = 1,277,425,830.47
  5. Step 5: Solve for x
    x = 1,277,425,830.47/45,156.23
  6. Step 6: Final answer
    x = 28,289.03

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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.