Home / 43,310.74-64,913.79-21,090.82

Finding the Fourth Proportional to 43,310.74, 64,913.79 and 21,090.82

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Solution

The fourth proportional to 43,310.74, 64,913.79 and 21,090.82 is: 31,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,310.74 : 64,913.79 = 21,090.82 : x
  2. Step 2: Convert to fraction form
    43,310.74/64,913.79 = 21,090.82/x
  3. Step 3: Cross multiply
    43,310.74x = 64,913.79 × 21,090.82
  4. Step 4: Simplify right side
    43,310.74x = 1,369,085,060.41
  5. Step 5: Solve for x
    x = 1,369,085,060.41/43,310.74
  6. Step 6: Final answer
    x = 31,610.75

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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.