Home / 74,883.30-103,215.90-53,087.04

Finding the Fourth Proportional to 74,883.30, 103,215.90 and 53,087.04

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Solution

The fourth proportional to 74,883.30, 103,215.90 and 53,087.04 is: 73,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,883.30 : 103,215.90 = 53,087.04 : x
  2. Step 2: Convert to fraction form
    74,883.30/103,215.90 = 53,087.04/x
  3. Step 3: Cross multiply
    74,883.30x = 103,215.90 × 53,087.04
  4. Step 4: Simplify right side
    74,883.30x = 5,479,426,611.94
  5. Step 5: Solve for x
    x = 5,479,426,611.94/74,883.30
  6. Step 6: Final answer
    x = 73,172.88

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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.