Home / 68,615.02-102,908.12-19,355.50

Finding the Fourth Proportional to 68,615.02, 102,908.12 and 19,355.50

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Solution

The fourth proportional to 68,615.02, 102,908.12 and 19,355.50 is: 29,029.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,615.02 : 102,908.12 = 19,355.50 : x
  2. Step 2: Convert to fraction form
    68,615.02/102,908.12 = 19,355.50/x
  3. Step 3: Cross multiply
    68,615.02x = 102,908.12 × 19,355.50
  4. Step 4: Simplify right side
    68,615.02x = 1,991,838,116.66
  5. Step 5: Solve for x
    x = 1,991,838,116.66/68,615.02
  6. Step 6: Final answer
    x = 29,029.19

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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.