Home / 75,327.56-112,947.04-28,583.72

Finding the Fourth Proportional to 75,327.56, 112,947.04 and 28,583.72

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Solution

The fourth proportional to 75,327.56, 112,947.04 and 28,583.72 is: 42,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,327.56 : 112,947.04 = 28,583.72 : x
  2. Step 2: Convert to fraction form
    75,327.56/112,947.04 = 28,583.72/x
  3. Step 3: Cross multiply
    75,327.56x = 112,947.04 × 28,583.72
  4. Step 4: Simplify right side
    75,327.56x = 3,228,446,566.19
  5. Step 5: Solve for x
    x = 3,228,446,566.19/75,327.56
  6. Step 6: Final answer
    x = 42,858.77

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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.