Home / 48,428.87-72,752.67-28,720.36

Finding the Fourth Proportional to 48,428.87, 72,752.67 and 28,720.36

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Solution

The fourth proportional to 48,428.87, 72,752.67 and 28,720.36 is: 43,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.87 : 72,752.67 = 28,720.36 : x
  2. Step 2: Convert to fraction form
    48,428.87/72,752.67 = 28,720.36/x
  3. Step 3: Cross multiply
    48,428.87x = 72,752.67 × 28,720.36
  4. Step 4: Simplify right side
    48,428.87x = 2,089,482,366.00
  5. Step 5: Solve for x
    x = 2,089,482,366.00/48,428.87
  6. Step 6: Final answer
    x = 43,145.39

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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.