Home / 79,128.63-118,692.94-26,537.96

Finding the Fourth Proportional to 79,128.63, 118,692.94 and 26,537.96

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Solution

The fourth proportional to 79,128.63, 118,692.94 and 26,537.96 is: 39,806.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,128.63 : 118,692.94 = 26,537.96 : x
  2. Step 2: Convert to fraction form
    79,128.63/118,692.94 = 26,537.96/x
  3. Step 3: Cross multiply
    79,128.63x = 118,692.94 × 26,537.96
  4. Step 4: Simplify right side
    79,128.63x = 3,149,868,494.00
  5. Step 5: Solve for x
    x = 3,149,868,494.00/79,128.63
  6. Step 6: Final answer
    x = 39,806.94

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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.