Home / 75,787.28-104,596.20-63,018.50

Finding the Fourth Proportional to 75,787.28, 104,596.20 and 63,018.50

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Solution

The fourth proportional to 75,787.28, 104,596.20 and 63,018.50 is: 86,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,787.28 : 104,596.20 = 63,018.50 : x
  2. Step 2: Convert to fraction form
    75,787.28/104,596.20 = 63,018.50/x
  3. Step 3: Cross multiply
    75,787.28x = 104,596.20 × 63,018.50
  4. Step 4: Simplify right side
    75,787.28x = 6,591,495,106.72
  5. Step 5: Solve for x
    x = 6,591,495,106.72/75,787.28
  6. Step 6: Final answer
    x = 86,973.64

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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.