Home / 82,403.10-123,588.45-26,999.10

Finding the Fourth Proportional to 82,403.10, 123,588.45 and 26,999.10

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Solution

The fourth proportional to 82,403.10, 123,588.45 and 26,999.10 is: 40,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,403.10 : 123,588.45 = 26,999.10 : x
  2. Step 2: Convert to fraction form
    82,403.10/123,588.45 = 26,999.10/x
  3. Step 3: Cross multiply
    82,403.10x = 123,588.45 × 26,999.10
  4. Step 4: Simplify right side
    82,403.10x = 3,336,776,920.40
  5. Step 5: Solve for x
    x = 3,336,776,920.40/82,403.10
  6. Step 6: Final answer
    x = 40,493.34

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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.