Home / 79,128.13-118,692.20-26,537.46

Finding the Fourth Proportional to 79,128.13, 118,692.20 and 26,537.46

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Solution

The fourth proportional to 79,128.13, 118,692.20 and 26,537.46 is: 39,806.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,128.13 : 118,692.20 = 26,537.46 : x
  2. Step 2: Convert to fraction form
    79,128.13/118,692.20 = 26,537.46/x
  3. Step 3: Cross multiply
    79,128.13x = 118,692.20 × 26,537.46
  4. Step 4: Simplify right side
    79,128.13x = 3,149,789,525.49
  5. Step 5: Solve for x
    x = 3,149,789,525.49/79,128.13
  6. Step 6: Final answer
    x = 39,806.19

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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.