Home / 54,985.04-75,872.94-30,787.38

Finding the Fourth Proportional to 54,985.04, 75,872.94 and 30,787.38

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Solution

The fourth proportional to 54,985.04, 75,872.94 and 30,787.38 is: 42,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,985.04 : 75,872.94 = 30,787.38 : x
  2. Step 2: Convert to fraction form
    54,985.04/75,872.94 = 30,787.38/x
  3. Step 3: Cross multiply
    54,985.04x = 75,872.94 × 30,787.38
  4. Step 4: Simplify right side
    54,985.04x = 2,335,929,035.50
  5. Step 5: Solve for x
    x = 2,335,929,035.50/54,985.04
  6. Step 6: Final answer
    x = 42,482.99

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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.