Home / 54,158.40-74,738.08-30,284.80

Finding the Fourth Proportional to 54,158.40, 74,738.08 and 30,284.80

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Solution

The fourth proportional to 54,158.40, 74,738.08 and 30,284.80 is: 41,792.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,158.40 : 74,738.08 = 30,284.80 : x
  2. Step 2: Convert to fraction form
    54,158.40/74,738.08 = 30,284.80/x
  3. Step 3: Cross multiply
    54,158.40x = 74,738.08 × 30,284.80
  4. Step 4: Simplify right side
    54,158.40x = 2,263,427,805.18
  5. Step 5: Solve for x
    x = 2,263,427,805.18/54,158.40
  6. Step 6: Final answer
    x = 41,792.74

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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.