Home / 45,974.46-68,905.95-20,980.26

Finding the Fourth Proportional to 45,974.46, 68,905.95 and 20,980.26

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Solution

The fourth proportional to 45,974.46, 68,905.95 and 20,980.26 is: 31,444.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,974.46 : 68,905.95 = 20,980.26 : x
  2. Step 2: Convert to fraction form
    45,974.46/68,905.95 = 20,980.26/x
  3. Step 3: Cross multiply
    45,974.46x = 68,905.95 × 20,980.26
  4. Step 4: Simplify right side
    45,974.46x = 1,445,664,746.55
  5. Step 5: Solve for x
    x = 1,445,664,746.55/45,974.46
  6. Step 6: Final answer
    x = 31,444.95

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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.