Home / 54,068.20-74,603.29-30,191.20

Finding the Fourth Proportional to 54,068.20, 74,603.29 and 30,191.20

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Solution

The fourth proportional to 54,068.20, 74,603.29 and 30,191.20 is: 41,657.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,068.20 : 74,603.29 = 30,191.20 : x
  2. Step 2: Convert to fraction form
    54,068.20/74,603.29 = 30,191.20/x
  3. Step 3: Cross multiply
    54,068.20x = 74,603.29 × 30,191.20
  4. Step 4: Simplify right side
    54,068.20x = 2,252,362,400.55
  5. Step 5: Solve for x
    x = 2,252,362,400.55/54,068.20
  6. Step 6: Final answer
    x = 41,657.81

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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.