Home / 43,811.40-65,740.05-20,126.10

Finding the Fourth Proportional to 43,811.40, 65,740.05 and 20,126.10

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Solution

The fourth proportional to 43,811.40, 65,740.05 and 20,126.10 is: 30,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,811.40 : 65,740.05 = 20,126.10 : x
  2. Step 2: Convert to fraction form
    43,811.40/65,740.05 = 20,126.10/x
  3. Step 3: Cross multiply
    43,811.40x = 65,740.05 × 20,126.10
  4. Step 4: Simplify right side
    43,811.40x = 1,323,090,820.31
  5. Step 5: Solve for x
    x = 1,323,090,820.31/43,811.40
  6. Step 6: Final answer
    x = 30,199.69

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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.