Home / 53,380.63-73,664.87-30,724.05

Finding the Fourth Proportional to 53,380.63, 73,664.87 and 30,724.05

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Solution

The fourth proportional to 53,380.63, 73,664.87 and 30,724.05 is: 42,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,380.63 : 73,664.87 = 30,724.05 : x
  2. Step 2: Convert to fraction form
    53,380.63/73,664.87 = 30,724.05/x
  3. Step 3: Cross multiply
    53,380.63x = 73,664.87 × 30,724.05
  4. Step 4: Simplify right side
    53,380.63x = 2,263,282,995.50
  5. Step 5: Solve for x
    x = 2,263,282,995.50/53,380.63
  6. Step 6: Final answer
    x = 42,398.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.