Home / 68,300.08-102,460.74-28,857.40

Finding the Fourth Proportional to 68,300.08, 102,460.74 and 28,857.40

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Solution

The fourth proportional to 68,300.08, 102,460.74 and 28,857.40 is: 43,290.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,300.08 : 102,460.74 = 28,857.40 : x
  2. Step 2: Convert to fraction form
    68,300.08/102,460.74 = 28,857.40/x
  3. Step 3: Cross multiply
    68,300.08x = 102,460.74 × 28,857.40
  4. Step 4: Simplify right side
    68,300.08x = 2,956,750,558.48
  5. Step 5: Solve for x
    x = 2,956,750,558.48/68,300.08
  6. Step 6: Final answer
    x = 43,290.59

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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.