Home / 54,792.20-82,131.60-29,779.40

Finding the Fourth Proportional to 54,792.20, 82,131.60 and 29,779.40

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Solution

The fourth proportional to 54,792.20, 82,131.60 and 29,779.40 is: 44,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,792.20 : 82,131.60 = 29,779.40 : x
  2. Step 2: Convert to fraction form
    54,792.20/82,131.60 = 29,779.40/x
  3. Step 3: Cross multiply
    54,792.20x = 82,131.60 × 29,779.40
  4. Step 4: Simplify right side
    54,792.20x = 2,445,829,769.04
  5. Step 5: Solve for x
    x = 2,445,829,769.04/54,792.20
  6. Step 6: Final answer
    x = 44,638.28

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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.