Home / 54,185.75-74,777.88-30,312.51

Finding the Fourth Proportional to 54,185.75, 74,777.88 and 30,312.51

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Solution

The fourth proportional to 54,185.75, 74,777.88 and 30,312.51 is: 41,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,185.75 : 74,777.88 = 30,312.51 : x
  2. Step 2: Convert to fraction form
    54,185.75/74,777.88 = 30,312.51/x
  3. Step 3: Cross multiply
    54,185.75x = 74,777.88 × 30,312.51
  4. Step 4: Simplify right side
    54,185.75x = 2,266,705,235.28
  5. Step 5: Solve for x
    x = 2,266,705,235.28/54,185.75
  6. Step 6: Final answer
    x = 41,832.13

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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.