Home / 74,712.70-112,099.09-30,342.93

Finding the Fourth Proportional to 74,712.70, 112,099.09 and 30,342.93

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Solution

The fourth proportional to 74,712.70, 112,099.09 and 30,342.93 is: 45,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,712.70 : 112,099.09 = 30,342.93 : x
  2. Step 2: Convert to fraction form
    74,712.70/112,099.09 = 30,342.93/x
  3. Step 3: Cross multiply
    74,712.70x = 112,099.09 × 30,342.93
  4. Step 4: Simplify right side
    74,712.70x = 3,401,414,840.93
  5. Step 5: Solve for x
    x = 3,401,414,840.93/74,712.70
  6. Step 6: Final answer
    x = 45,526.60

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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.