Home / 54,323.87-74,971.61-30,455.12

Finding the Fourth Proportional to 54,323.87, 74,971.61 and 30,455.12

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Solution

The fourth proportional to 54,323.87, 74,971.61 and 30,455.12 is: 42,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,323.87 : 74,971.61 = 30,455.12 : x
  2. Step 2: Convert to fraction form
    54,323.87/74,971.61 = 30,455.12/x
  3. Step 3: Cross multiply
    54,323.87x = 74,971.61 × 30,455.12
  4. Step 4: Simplify right side
    54,323.87x = 2,283,269,528.50
  5. Step 5: Solve for x
    x = 2,283,269,528.50/54,323.87
  6. Step 6: Final answer
    x = 42,030.69

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1.5x scale

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.