Home / 74,889.06-112,302.54-30,485.67

Finding the Fourth Proportional to 74,889.06, 112,302.54 and 30,485.67

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Solution

The fourth proportional to 74,889.06, 112,302.54 and 30,485.67 is: 45,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889.06 : 112,302.54 = 30,485.67 : x
  2. Step 2: Convert to fraction form
    74,889.06/112,302.54 = 30,485.67/x
  3. Step 3: Cross multiply
    74,889.06x = 112,302.54 × 30,485.67
  4. Step 4: Simplify right side
    74,889.06x = 3,423,618,174.60
  5. Step 5: Solve for x
    x = 3,423,618,174.60/74,889.06
  6. Step 6: Final answer
    x = 45,715.87

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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.