Home / 72,215.77-108,325.88-19,626.37

Finding the Fourth Proportional to 72,215.77, 108,325.88 and 19,626.37

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Solution

The fourth proportional to 72,215.77, 108,325.88 and 19,626.37 is: 29,440.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,215.77 : 108,325.88 = 19,626.37 : x
  2. Step 2: Convert to fraction form
    72,215.77/108,325.88 = 19,626.37/x
  3. Step 3: Cross multiply
    72,215.77x = 108,325.88 × 19,626.37
  4. Step 4: Simplify right side
    72,215.77x = 2,126,043,801.46
  5. Step 5: Solve for x
    x = 2,126,043,801.46/72,215.77
  6. Step 6: Final answer
    x = 29,440.16

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1.5x scale

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.