Home / 45,983.50-68,917.54-19,657.30

Finding the Fourth Proportional to 45,983.50, 68,917.54 and 19,657.30

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Solution

The fourth proportional to 45,983.50, 68,917.54 and 19,657.30 is: 29,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,983.50 : 68,917.54 = 19,657.30 : x
  2. Step 2: Convert to fraction form
    45,983.50/68,917.54 = 19,657.30/x
  3. Step 3: Cross multiply
    45,983.50x = 68,917.54 × 19,657.30
  4. Step 4: Simplify right side
    45,983.50x = 1,354,732,759.04
  5. Step 5: Solve for x
    x = 1,354,732,759.04/45,983.50
  6. Step 6: Final answer
    x = 29,461.28

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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.