Home / 45,308.72-67,941-19,006.40

Finding the Fourth Proportional to 45,308.72, 67,941 and 19,006.40

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Solution

The fourth proportional to 45,308.72, 67,941 and 19,006.40 is: 28,500.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,308.72 : 67,941 = 19,006.40 : x
  2. Step 2: Convert to fraction form
    45,308.72/67,941 = 19,006.40/x
  3. Step 3: Cross multiply
    45,308.72x = 67,941 × 19,006.40
  4. Step 4: Simplify right side
    45,308.72x = 1,291,313,822.40
  5. Step 5: Solve for x
    x = 1,291,313,822.40/45,308.72
  6. Step 6: Final answer
    x = 28,500.34

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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.