Home / 49,989.18-74,983.80-13,053.18

Finding the Fourth Proportional to 49,989.18, 74,983.80 and 13,053.18

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Solution

The fourth proportional to 49,989.18, 74,983.80 and 13,053.18 is: 19,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,989.18 : 74,983.80 = 13,053.18 : x
  2. Step 2: Convert to fraction form
    49,989.18/74,983.80 = 13,053.18/x
  3. Step 3: Cross multiply
    49,989.18x = 74,983.80 × 13,053.18
  4. Step 4: Simplify right side
    49,989.18x = 978,777,038.48
  5. Step 5: Solve for x
    x = 978,777,038.48/49,989.18
  6. Step 6: Final answer
    x = 19,579.78

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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.