Home / 81,874,254.33-112,973,134.46-48,379,072.50

Finding the Fourth Proportional to 81,874,254.33, 112,973,134.46 and 48,379,072.50

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Solution

The fourth proportional to 81,874,254.33, 112,973,134.46 and 48,379,072.50 is: 66,755,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,874,254.33 : 112,973,134.46 = 48,379,072.50 : x
  2. Step 2: Convert to fraction form
    81,874,254.33/112,973,134.46 = 48,379,072.50/x
  3. Step 3: Cross multiply
    81,874,254.33x = 112,973,134.46 × 48,379,072.50
  4. Step 4: Simplify right side
    81,874,254.33x = 5,465,535,462,350,693
  5. Step 5: Solve for x
    x = 5,465,535,462,350,693/81,874,254.33
  6. Step 6: Final answer
    x = 66,755,239.57

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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.