Home / 45,358.79-68,014.71-20,377.46

Finding the Fourth Proportional to 45,358.79, 68,014.71 and 20,377.46

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Solution

The fourth proportional to 45,358.79, 68,014.71 and 20,377.46 is: 30,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,358.79 : 68,014.71 = 20,377.46 : x
  2. Step 2: Convert to fraction form
    45,358.79/68,014.71 = 20,377.46/x
  3. Step 3: Cross multiply
    45,358.79x = 68,014.71 × 20,377.46
  4. Step 4: Simplify right side
    45,358.79x = 1,385,967,202.47
  5. Step 5: Solve for x
    x = 1,385,967,202.47/45,358.79
  6. Step 6: Final answer
    x = 30,555.65

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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.