Home / 75,072.64-103,589.76-63,787.84

Finding the Fourth Proportional to 75,072.64, 103,589.76 and 63,787.84

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Solution

The fourth proportional to 75,072.64, 103,589.76 and 63,787.84 is: 88,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,072.64 : 103,589.76 = 63,787.84 : x
  2. Step 2: Convert to fraction form
    75,072.64/103,589.76 = 63,787.84/x
  3. Step 3: Cross multiply
    75,072.64x = 103,589.76 × 63,787.84
  4. Step 4: Simplify right side
    75,072.64x = 6,607,767,036.52
  5. Step 5: Solve for x
    x = 6,607,767,036.52/75,072.64
  6. Step 6: Final answer
    x = 88,018.31

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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.