Home / 78,735.26-118,032.96-30,692.80

Finding the Fourth Proportional to 78,735.26, 118,032.96 and 30,692.80

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Solution

The fourth proportional to 78,735.26, 118,032.96 and 30,692.80 is: 46,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,735.26 : 118,032.96 = 30,692.80 : x
  2. Step 2: Convert to fraction form
    78,735.26/118,032.96 = 30,692.80/x
  3. Step 3: Cross multiply
    78,735.26x = 118,032.96 × 30,692.80
  4. Step 4: Simplify right side
    78,735.26x = 3,622,761,444.52
  5. Step 5: Solve for x
    x = 3,622,761,444.52/78,735.26
  6. Step 6: Final answer
    x = 46,011.93

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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.