Home / 68,037.12-102,063.36-28,586.88

Finding the Fourth Proportional to 68,037.12, 102,063.36 and 28,586.88

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Solution

The fourth proportional to 68,037.12, 102,063.36 and 28,586.88 is: 42,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,037.12 : 102,063.36 = 28,586.88 : x
  2. Step 2: Convert to fraction form
    68,037.12/102,063.36 = 28,586.88/x
  3. Step 3: Cross multiply
    68,037.12x = 102,063.36 × 28,586.88
  4. Step 4: Simplify right side
    68,037.12x = 2,917,673,024.72
  5. Step 5: Solve for x
    x = 2,917,673,024.72/68,037.12
  6. Step 6: Final answer
    x = 42,883.55

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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.