Home / 54,582.34-75,323.46-30,709

Finding the Fourth Proportional to 54,582.34, 75,323.46 and 30,709

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Solution

The fourth proportional to 54,582.34, 75,323.46 and 30,709 is: 42,378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,582.34 : 75,323.46 = 30,709 : x
  2. Step 2: Convert to fraction form
    54,582.34/75,323.46 = 30,709/x
  3. Step 3: Cross multiply
    54,582.34x = 75,323.46 × 30,709
  4. Step 4: Simplify right side
    54,582.34x = 2,313,108,133.14
  5. Step 5: Solve for x
    x = 2,313,108,133.14/54,582.34
  6. Step 6: Final answer
    x = 42,378.32

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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.