Home / 68,073.02-102,033.86-51,378.92

Finding the Fourth Proportional to 68,073.02, 102,033.86 and 51,378.92

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Solution

The fourth proportional to 68,073.02, 102,033.86 and 51,378.92 is: 77,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,073.02 : 102,033.86 = 51,378.92 : x
  2. Step 2: Convert to fraction form
    68,073.02/102,033.86 = 51,378.92/x
  3. Step 3: Cross multiply
    68,073.02x = 102,033.86 × 51,378.92
  4. Step 4: Simplify right side
    68,073.02x = 5,242,389,530.23
  5. Step 5: Solve for x
    x = 5,242,389,530.23/68,073.02
  6. Step 6: Final answer
    x = 77,011.27

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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.