Home / 54,128.84-74,697.30-30,254.90

Finding the Fourth Proportional to 54,128.84, 74,697.30 and 30,254.90

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Solution

The fourth proportional to 54,128.84, 74,697.30 and 30,254.90 is: 41,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128.84 : 74,697.30 = 30,254.90 : x
  2. Step 2: Convert to fraction form
    54,128.84/74,697.30 = 30,254.90/x
  3. Step 3: Cross multiply
    54,128.84x = 74,697.30 × 30,254.90
  4. Step 4: Simplify right side
    54,128.84x = 2,259,958,968.28
  5. Step 5: Solve for x
    x = 2,259,958,968.28/54,128.84
  6. Step 6: Final answer
    x = 41,751.48

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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.