Home / 45,705.87-68,448.15-31,626.45

Finding the Fourth Proportional to 45,705.87, 68,448.15 and 31,626.45

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Solution

The fourth proportional to 45,705.87, 68,448.15 and 31,626.45 is: 47,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,705.87 : 68,448.15 = 31,626.45 : x
  2. Step 2: Convert to fraction form
    45,705.87/68,448.15 = 31,626.45/x
  3. Step 3: Cross multiply
    45,705.87x = 68,448.15 × 31,626.45
  4. Step 4: Simplify right side
    45,705.87x = 2,164,771,993.57
  5. Step 5: Solve for x
    x = 2,164,771,993.57/45,705.87
  6. Step 6: Final answer
    x = 47,363.11

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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.