Home / 87,702.66-121,001.01-53,675.70

Finding the Fourth Proportional to 87,702.66, 121,001.01 and 53,675.70

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Solution

The fourth proportional to 87,702.66, 121,001.01 and 53,675.70 is: 74,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,702.66 : 121,001.01 = 53,675.70 : x
  2. Step 2: Convert to fraction form
    87,702.66/121,001.01 = 53,675.70/x
  3. Step 3: Cross multiply
    87,702.66x = 121,001.01 × 53,675.70
  4. Step 4: Simplify right side
    87,702.66x = 6,494,813,912.46
  5. Step 5: Solve for x
    x = 6,494,813,912.46/87,702.66
  6. Step 6: Final answer
    x = 74,054.93

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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.