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Finding the Fourth Proportional to 68,107.89, 102,130.29 and 37,692.57

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Solution

The fourth proportional to 68,107.89, 102,130.29 and 37,692.57 is: 56,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,107.89 : 102,130.29 = 37,692.57 : x
  2. Step 2: Convert to fraction form
    68,107.89/102,130.29 = 37,692.57/x
  3. Step 3: Cross multiply
    68,107.89x = 102,130.29 × 37,692.57
  4. Step 4: Simplify right side
    68,107.89x = 3,849,553,104.95
  5. Step 5: Solve for x
    x = 3,849,553,104.95/68,107.89
  6. Step 6: Final answer
    x = 56,521.40

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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.