Home / 40,135.15-55,381.26-23,140.03

Finding the Fourth Proportional to 40,135.15, 55,381.26 and 23,140.03

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Solution

The fourth proportional to 40,135.15, 55,381.26 and 23,140.03 is: 31,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.15 : 55,381.26 = 23,140.03 : x
  2. Step 2: Convert to fraction form
    40,135.15/55,381.26 = 23,140.03/x
  3. Step 3: Cross multiply
    40,135.15x = 55,381.26 × 23,140.03
  4. Step 4: Simplify right side
    40,135.15x = 1,281,524,017.84
  5. Step 5: Solve for x
    x = 1,281,524,017.84/40,135.15
  6. Step 6: Final answer
    x = 31,930.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.