Home / 48,427.87-72,751.16-28,719.36

Finding the Fourth Proportional to 48,427.87, 72,751.16 and 28,719.36

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Solution

The fourth proportional to 48,427.87, 72,751.16 and 28,719.36 is: 43,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,427.87 : 72,751.16 = 28,719.36 : x
  2. Step 2: Convert to fraction form
    48,427.87/72,751.16 = 28,719.36/x
  3. Step 3: Cross multiply
    48,427.87x = 72,751.16 × 28,719.36
  4. Step 4: Simplify right side
    48,427.87x = 2,089,366,390.70
  5. Step 5: Solve for x
    x = 2,089,366,390.70/48,427.87
  6. Step 6: Final answer
    x = 43,143.88

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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.