Home / 54,582.40-75,326.40-30,707.84

Finding the Fourth Proportional to 54,582.40, 75,326.40 and 30,707.84

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Solution

The fourth proportional to 54,582.40, 75,326.40 and 30,707.84 is: 42,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,582.40 : 75,326.40 = 30,707.84 : x
  2. Step 2: Convert to fraction form
    54,582.40/75,326.40 = 30,707.84/x
  3. Step 3: Cross multiply
    54,582.40x = 75,326.40 × 30,707.84
  4. Step 4: Simplify right side
    54,582.40x = 2,313,111,038.98
  5. Step 5: Solve for x
    x = 2,313,111,038.98/54,582.40
  6. Step 6: Final answer
    x = 42,378.33

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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.