Home / 43,935.66-65,905.31-12,770.91

Finding the Fourth Proportional to 43,935.66, 65,905.31 and 12,770.91

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Solution

The fourth proportional to 43,935.66, 65,905.31 and 12,770.91 is: 19,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,935.66 : 65,905.31 = 12,770.91 : x
  2. Step 2: Convert to fraction form
    43,935.66/65,905.31 = 12,770.91/x
  3. Step 3: Cross multiply
    43,935.66x = 65,905.31 × 12,770.91
  4. Step 4: Simplify right side
    43,935.66x = 841,670,814.46
  5. Step 5: Solve for x
    x = 841,670,814.46/43,935.66
  6. Step 6: Final answer
    x = 19,156.89

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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.