Home / 54,430.60-81,653.34-19,361.80

Finding the Fourth Proportional to 54,430.60, 81,653.34 and 19,361.80

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Solution

The fourth proportional to 54,430.60, 81,653.34 and 19,361.80 is: 29,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,430.60 : 81,653.34 = 19,361.80 : x
  2. Step 2: Convert to fraction form
    54,430.60/81,653.34 = 19,361.80/x
  3. Step 3: Cross multiply
    54,430.60x = 81,653.34 × 19,361.80
  4. Step 4: Simplify right side
    54,430.60x = 1,580,955,638.41
  5. Step 5: Solve for x
    x = 1,580,955,638.41/54,430.60
  6. Step 6: Final answer
    x = 29,045.35

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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.