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Finding the Fourth Proportional to 82,403.90, 123,598.65 and 26,999.90

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Solution

The fourth proportional to 82,403.90, 123,598.65 and 26,999.90 is: 40,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,403.90 : 123,598.65 = 26,999.90 : x
  2. Step 2: Convert to fraction form
    82,403.90/123,598.65 = 26,999.90/x
  3. Step 3: Cross multiply
    82,403.90x = 123,598.65 × 26,999.90
  4. Step 4: Simplify right side
    82,403.90x = 3,337,151,190.14
  5. Step 5: Solve for x
    x = 3,337,151,190.14/82,403.90
  6. Step 6: Final answer
    x = 40,497.49

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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.