Home / 43,268.46-64,764.18-31,380.90

Finding the Fourth Proportional to 43,268.46, 64,764.18 and 31,380.90

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Solution

The fourth proportional to 43,268.46, 64,764.18 and 31,380.90 is: 46,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,268.46 : 64,764.18 = 31,380.90 : x
  2. Step 2: Convert to fraction form
    43,268.46/64,764.18 = 31,380.90/x
  3. Step 3: Cross multiply
    43,268.46x = 64,764.18 × 31,380.90
  4. Step 4: Simplify right side
    43,268.46x = 2,032,358,256.16
  5. Step 5: Solve for x
    x = 2,032,358,256.16/43,268.46
  6. Step 6: Final answer
    x = 46,970.89

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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.