Home / 87,144.63-120,299.40-66,994.44

Finding the Fourth Proportional to 87,144.63, 120,299.40 and 66,994.44

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Solution

The fourth proportional to 87,144.63, 120,299.40 and 66,994.44 is: 92,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,144.63 : 120,299.40 = 66,994.44 : x
  2. Step 2: Convert to fraction form
    87,144.63/120,299.40 = 66,994.44/x
  3. Step 3: Cross multiply
    87,144.63x = 120,299.40 × 66,994.44
  4. Step 4: Simplify right side
    87,144.63x = 8,059,390,935.34
  5. Step 5: Solve for x
    x = 8,059,390,935.34/87,144.63
  6. Step 6: Final answer
    x = 92,482.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.