Home / 40,412.12-60,579.30-20,699.96

Finding the Fourth Proportional to 40,412.12, 60,579.30 and 20,699.96

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Solution

The fourth proportional to 40,412.12, 60,579.30 and 20,699.96 is: 31,030.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,412.12 : 60,579.30 = 20,699.96 : x
  2. Step 2: Convert to fraction form
    40,412.12/60,579.30 = 20,699.96/x
  3. Step 3: Cross multiply
    40,412.12x = 60,579.30 × 20,699.96
  4. Step 4: Simplify right side
    40,412.12x = 1,253,989,086.83
  5. Step 5: Solve for x
    x = 1,253,989,086.83/40,412.12
  6. Step 6: Final answer
    x = 31,030.02

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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.