Home / 73,120.74-109,665.26-42,705.54

Finding the Fourth Proportional to 73,120.74, 109,665.26 and 42,705.54

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Solution

The fourth proportional to 73,120.74, 109,665.26 and 42,705.54 is: 64,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,120.74 : 109,665.26 = 42,705.54 : x
  2. Step 2: Convert to fraction form
    73,120.74/109,665.26 = 42,705.54/x
  3. Step 3: Cross multiply
    73,120.74x = 109,665.26 × 42,705.54
  4. Step 4: Simplify right side
    73,120.74x = 4,683,314,094.16
  5. Step 5: Solve for x
    x = 4,683,314,094.16/73,120.74
  6. Step 6: Final answer
    x = 64,049.06

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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.