Home / 76,154.25-104,905.08-64,787.34

Finding the Fourth Proportional to 76,154.25, 104,905.08 and 64,787.34

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Solution

The fourth proportional to 76,154.25, 104,905.08 and 64,787.34 is: 89,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,154.25 : 104,905.08 = 64,787.34 : x
  2. Step 2: Convert to fraction form
    76,154.25/104,905.08 = 64,787.34/x
  3. Step 3: Cross multiply
    76,154.25x = 104,905.08 × 64,787.34
  4. Step 4: Simplify right side
    76,154.25x = 6,796,521,085.69
  5. Step 5: Solve for x
    x = 6,796,521,085.69/76,154.25
  6. Step 6: Final answer
    x = 89,246.77

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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.