Home / 82,603.13-123,905.30-20,273.63

Finding the Fourth Proportional to 82,603.13, 123,905.30 and 20,273.63

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Solution

The fourth proportional to 82,603.13, 123,905.30 and 20,273.63 is: 30,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,603.13 : 123,905.30 = 20,273.63 : x
  2. Step 2: Convert to fraction form
    82,603.13/123,905.30 = 20,273.63/x
  3. Step 3: Cross multiply
    82,603.13x = 123,905.30 × 20,273.63
  4. Step 4: Simplify right side
    82,603.13x = 2,512,009,486.34
  5. Step 5: Solve for x
    x = 2,512,009,486.34/82,603.13
  6. Step 6: Final answer
    x = 30,410.59

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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.