Home / 54,003.71-74,528.70-30,130.90

Finding the Fourth Proportional to 54,003.71, 74,528.70 and 30,130.90

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Solution

The fourth proportional to 54,003.71, 74,528.70 and 30,130.90 is: 41,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,003.71 : 74,528.70 = 30,130.90 : x
  2. Step 2: Convert to fraction form
    54,003.71/74,528.70 = 30,130.90/x
  3. Step 3: Cross multiply
    54,003.71x = 74,528.70 × 30,130.90
  4. Step 4: Simplify right side
    54,003.71x = 2,245,616,806.83
  5. Step 5: Solve for x
    x = 2,245,616,806.83/54,003.71
  6. Step 6: Final answer
    x = 41,582.64

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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.