Home / 45,250.31-67,880.33-20,301.50

Finding the Fourth Proportional to 45,250.31, 67,880.33 and 20,301.50

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Solution

The fourth proportional to 45,250.31, 67,880.33 and 20,301.50 is: 30,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,250.31 : 67,880.33 = 20,301.50 : x
  2. Step 2: Convert to fraction form
    45,250.31/67,880.33 = 20,301.50/x
  3. Step 3: Cross multiply
    45,250.31x = 67,880.33 × 20,301.50
  4. Step 4: Simplify right side
    45,250.31x = 1,378,072,663.82
  5. Step 5: Solve for x
    x = 1,378,072,663.82/45,250.31
  6. Step 6: Final answer
    x = 30,454.43

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1.5x scale

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.