Home / 72,513.63-108,629.10-40,826.84

Finding the Fourth Proportional to 72,513.63, 108,629.10 and 40,826.84

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Solution

The fourth proportional to 72,513.63, 108,629.10 and 40,826.84 is: 61,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,513.63 : 108,629.10 = 40,826.84 : x
  2. Step 2: Convert to fraction form
    72,513.63/108,629.10 = 40,826.84/x
  3. Step 3: Cross multiply
    72,513.63x = 108,629.10 × 40,826.84
  4. Step 4: Simplify right side
    72,513.63x = 4,434,982,341.90
  5. Step 5: Solve for x
    x = 4,434,982,341.90/72,513.63
  6. Step 6: Final answer
    x = 61,160.67

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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.