Home / 56,842.96-78,443.46-31,693.36

Finding the Fourth Proportional to 56,842.96, 78,443.46 and 31,693.36

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Solution

The fourth proportional to 56,842.96, 78,443.46 and 31,693.36 is: 43,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,842.96 : 78,443.46 = 31,693.36 : x
  2. Step 2: Convert to fraction form
    56,842.96/78,443.46 = 31,693.36/x
  3. Step 3: Cross multiply
    56,842.96x = 78,443.46 × 31,693.36
  4. Step 4: Simplify right side
    56,842.96x = 2,486,136,817.43
  5. Step 5: Solve for x
    x = 2,486,136,817.43/56,842.96
  6. Step 6: Final answer
    x = 43,736.93

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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.