Home / 43,729.60-65,536.80-31,403.20

Finding the Fourth Proportional to 43,729.60, 65,536.80 and 31,403.20

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Solution

The fourth proportional to 43,729.60, 65,536.80 and 31,403.20 is: 47,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,729.60 : 65,536.80 = 31,403.20 : x
  2. Step 2: Convert to fraction form
    43,729.60/65,536.80 = 31,403.20/x
  3. Step 3: Cross multiply
    43,729.60x = 65,536.80 × 31,403.20
  4. Step 4: Simplify right side
    43,729.60x = 2,058,065,237.76
  5. Step 5: Solve for x
    x = 2,058,065,237.76/43,729.60
  6. Step 6: Final answer
    x = 47,063.44

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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.