Home / 74,831.74-112,150.10-30,406.54

Finding the Fourth Proportional to 74,831.74, 112,150.10 and 30,406.54

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Solution

The fourth proportional to 74,831.74, 112,150.10 and 30,406.54 is: 45,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,831.74 : 112,150.10 = 30,406.54 : x
  2. Step 2: Convert to fraction form
    74,831.74/112,150.10 = 30,406.54/x
  3. Step 3: Cross multiply
    74,831.74x = 112,150.10 × 30,406.54
  4. Step 4: Simplify right side
    74,831.74x = 3,410,096,501.65
  5. Step 5: Solve for x
    x = 3,410,096,501.65/74,831.74
  6. Step 6: Final answer
    x = 45,570.19

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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.