Home / 85,053.18-117,387.78-49,264.98

Finding the Fourth Proportional to 85,053.18, 117,387.78 and 49,264.98

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Solution

The fourth proportional to 85,053.18, 117,387.78 and 49,264.98 is: 67,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,053.18 : 117,387.78 = 49,264.98 : x
  2. Step 2: Convert to fraction form
    85,053.18/117,387.78 = 49,264.98/x
  3. Step 3: Cross multiply
    85,053.18x = 117,387.78 × 49,264.98
  4. Step 4: Simplify right side
    85,053.18x = 5,783,106,633.94
  5. Step 5: Solve for x
    x = 5,783,106,633.94/85,053.18
  6. Step 6: Final answer
    x = 67,994.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.