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Finding the Fourth Proportional to 74,206.80, 102,322.98 and 57,173.04

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Solution

The fourth proportional to 74,206.80, 102,322.98 and 57,173.04 is: 78,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,206.80 : 102,322.98 = 57,173.04 : x
  2. Step 2: Convert to fraction form
    74,206.80/102,322.98 = 57,173.04/x
  3. Step 3: Cross multiply
    74,206.80x = 102,322.98 × 57,173.04
  4. Step 4: Simplify right side
    74,206.80x = 5,850,115,828.46
  5. Step 5: Solve for x
    x = 5,850,115,828.46/74,206.80
  6. Step 6: Final answer
    x = 78,835.31

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