Home / 43,679.54-65,420.87-30,590.35

Finding the Fourth Proportional to 43,679.54, 65,420.87 and 30,590.35

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Solution

The fourth proportional to 43,679.54, 65,420.87 and 30,590.35 is: 45,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,679.54 : 65,420.87 = 30,590.35 : x
  2. Step 2: Convert to fraction form
    43,679.54/65,420.87 = 30,590.35/x
  3. Step 3: Cross multiply
    43,679.54x = 65,420.87 × 30,590.35
  4. Step 4: Simplify right side
    43,679.54x = 2,001,246,994.10
  5. Step 5: Solve for x
    x = 2,001,246,994.10/43,679.54
  6. Step 6: Final answer
    x = 45,816.57

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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.