Home / 71,779.04-107,599.44-38,474.72

Finding the Fourth Proportional to 71,779.04, 107,599.44 and 38,474.72

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Solution

The fourth proportional to 71,779.04, 107,599.44 and 38,474.72 is: 57,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,779.04 : 107,599.44 = 38,474.72 : x
  2. Step 2: Convert to fraction form
    71,779.04/107,599.44 = 38,474.72/x
  3. Step 3: Cross multiply
    71,779.04x = 107,599.44 × 38,474.72
  4. Step 4: Simplify right side
    71,779.04x = 4,139,858,326.16
  5. Step 5: Solve for x
    x = 4,139,858,326.16/71,779.04
  6. Step 6: Final answer
    x = 57,675.03

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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.