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Finding the Fourth Proportional to 71,361.66, 107,042.50 and 29,779.50

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Solution

The fourth proportional to 71,361.66, 107,042.50 and 29,779.50 is: 44,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,361.66 : 107,042.50 = 29,779.50 : x
  2. Step 2: Convert to fraction form
    71,361.66/107,042.50 = 29,779.50/x
  3. Step 3: Cross multiply
    71,361.66x = 107,042.50 × 29,779.50
  4. Step 4: Simplify right side
    71,361.66x = 3,187,672,128.75
  5. Step 5: Solve for x
    x = 3,187,672,128.75/71,361.66
  6. Step 6: Final answer
    x = 44,669.25

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1.5x scale

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.