Home / 85,089.25-127,692.20-29,685.25

Finding the Fourth Proportional to 85,089.25, 127,692.20 and 29,685.25

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Solution

The fourth proportional to 85,089.25, 127,692.20 and 29,685.25 is: 44,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.25 : 127,692.20 = 29,685.25 : x
  2. Step 2: Convert to fraction form
    85,089.25/127,692.20 = 29,685.25/x
  3. Step 3: Cross multiply
    85,089.25x = 127,692.20 × 29,685.25
  4. Step 4: Simplify right side
    85,089.25x = 3,790,574,880.05
  5. Step 5: Solve for x
    x = 3,790,574,880.05/85,089.25
  6. Step 6: Final answer
    x = 44,548.22

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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.