Home / 54,011.75-74,528.78-30,133.80

Finding the Fourth Proportional to 54,011.75, 74,528.78 and 30,133.80

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Solution

The fourth proportional to 54,011.75, 74,528.78 and 30,133.80 is: 41,580.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,011.75 : 74,528.78 = 30,133.80 : x
  2. Step 2: Convert to fraction form
    54,011.75/74,528.78 = 30,133.80/x
  3. Step 3: Cross multiply
    54,011.75x = 74,528.78 × 30,133.80
  4. Step 4: Simplify right side
    54,011.75x = 2,245,835,200.10
  5. Step 5: Solve for x
    x = 2,245,835,200.10/54,011.75
  6. Step 6: Final answer
    x = 41,580.50

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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.