Home / 54,140.81-74,712.78-30,269.70

Finding the Fourth Proportional to 54,140.81, 74,712.78 and 30,269.70

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Solution

The fourth proportional to 54,140.81, 74,712.78 and 30,269.70 is: 41,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,140.81 : 74,712.78 = 30,269.70 : x
  2. Step 2: Convert to fraction form
    54,140.81/74,712.78 = 30,269.70/x
  3. Step 3: Cross multiply
    54,140.81x = 74,712.78 × 30,269.70
  4. Step 4: Simplify right side
    54,140.81x = 2,261,533,436.77
  5. Step 5: Solve for x
    x = 2,261,533,436.77/54,140.81
  6. Step 6: Final answer
    x = 41,771.33

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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.