Home / 53,581.98-80,378.30-19,857

Finding the Fourth Proportional to 53,581.98, 80,378.30 and 19,857

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Solution

The fourth proportional to 53,581.98, 80,378.30 and 19,857 is: 29,787.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,581.98 : 80,378.30 = 19,857 : x
  2. Step 2: Convert to fraction form
    53,581.98/80,378.30 = 19,857/x
  3. Step 3: Cross multiply
    53,581.98x = 80,378.30 × 19,857
  4. Step 4: Simplify right side
    53,581.98x = 1,596,071,903.10
  5. Step 5: Solve for x
    x = 1,596,071,903.10/53,581.98
  6. Step 6: Final answer
    x = 29,787.48

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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.