Home / 54,189.96-74,785.05-30,315.21

Finding the Fourth Proportional to 54,189.96, 74,785.05 and 30,315.21

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Solution

The fourth proportional to 54,189.96, 74,785.05 and 30,315.21 is: 41,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,189.96 : 74,785.05 = 30,315.21 : x
  2. Step 2: Convert to fraction form
    54,189.96/74,785.05 = 30,315.21/x
  3. Step 3: Cross multiply
    54,189.96x = 74,785.05 × 30,315.21
  4. Step 4: Simplify right side
    54,189.96x = 2,267,124,495.61
  5. Step 5: Solve for x
    x = 2,267,124,495.61/54,189.96
  6. Step 6: Final answer
    x = 41,836.62

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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.