Home / 74,710.49-111,881.21-55,689.53

Finding the Fourth Proportional to 74,710.49, 111,881.21 and 55,689.53

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Solution

The fourth proportional to 74,710.49, 111,881.21 and 55,689.53 is: 83,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,710.49 : 111,881.21 = 55,689.53 : x
  2. Step 2: Convert to fraction form
    74,710.49/111,881.21 = 55,689.53/x
  3. Step 3: Cross multiply
    74,710.49x = 111,881.21 × 55,689.53
  4. Step 4: Simplify right side
    74,710.49x = 6,230,611,162.88
  5. Step 5: Solve for x
    x = 6,230,611,162.88/74,710.49
  6. Step 6: Final answer
    x = 83,396.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.