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Finding the Fourth Proportional to 68,070.80, 101,887.20 and 36,401.63

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Solution

The fourth proportional to 68,070.80, 101,887.20 and 36,401.63 is: 54,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,070.80 : 101,887.20 = 36,401.63 : x
  2. Step 2: Convert to fraction form
    68,070.80/101,887.20 = 36,401.63/x
  3. Step 3: Cross multiply
    68,070.80x = 101,887.20 × 36,401.63
  4. Step 4: Simplify right side
    68,070.80x = 3,708,859,646.70
  5. Step 5: Solve for x
    x = 3,708,859,646.70/68,070.80
  6. Step 6: Final answer
    x = 54,485.32

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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.