Home / 79,577.72-119,374.37-28,990.50

Finding the Fourth Proportional to 79,577.72, 119,374.37 and 28,990.50

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Solution

The fourth proportional to 79,577.72, 119,374.37 and 28,990.50 is: 43,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,577.72 : 119,374.37 = 28,990.50 : x
  2. Step 2: Convert to fraction form
    79,577.72/119,374.37 = 28,990.50/x
  3. Step 3: Cross multiply
    79,577.72x = 119,374.37 × 28,990.50
  4. Step 4: Simplify right side
    79,577.72x = 3,460,722,352.66
  5. Step 5: Solve for x
    x = 3,460,722,352.66/79,577.72
  6. Step 6: Final answer
    x = 43,488.58

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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.