Home / 76,017.32-114,032.70-19,857

Finding the Fourth Proportional to 76,017.32, 114,032.70 and 19,857

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Solution

The fourth proportional to 76,017.32, 114,032.70 and 19,857 is: 29,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,017.32 : 114,032.70 = 19,857 : x
  2. Step 2: Convert to fraction form
    76,017.32/114,032.70 = 19,857/x
  3. Step 3: Cross multiply
    76,017.32x = 114,032.70 × 19,857
  4. Step 4: Simplify right side
    76,017.32x = 2,264,347,323.90
  5. Step 5: Solve for x
    x = 2,264,347,323.90/76,017.32
  6. Step 6: Final answer
    x = 29,787.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.