Home / 74,883.06-112,293.36-30,479.76

Finding the Fourth Proportional to 74,883.06, 112,293.36 and 30,479.76

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Solution

The fourth proportional to 74,883.06, 112,293.36 and 30,479.76 is: 45,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,883.06 : 112,293.36 = 30,479.76 : x
  2. Step 2: Convert to fraction form
    74,883.06/112,293.36 = 30,479.76/x
  3. Step 3: Cross multiply
    74,883.06x = 112,293.36 × 30,479.76
  4. Step 4: Simplify right side
    74,883.06x = 3,422,674,662.39
  5. Step 5: Solve for x
    x = 3,422,674,662.39/74,883.06
  6. Step 6: Final answer
    x = 45,706.93

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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.