Home / 82,583.80-123,908.10-29,998.60

Finding the Fourth Proportional to 82,583.80, 123,908.10 and 29,998.60

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Solution

The fourth proportional to 82,583.80, 123,908.10 and 29,998.60 is: 45,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,583.80 : 123,908.10 = 29,998.60 : x
  2. Step 2: Convert to fraction form
    82,583.80/123,908.10 = 29,998.60/x
  3. Step 3: Cross multiply
    82,583.80x = 123,908.10 × 29,998.60
  4. Step 4: Simplify right side
    82,583.80x = 3,717,069,528.66
  5. Step 5: Solve for x
    x = 3,717,069,528.66/82,583.80
  6. Step 6: Final answer
    x = 45,009.67

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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.