Home / 76,045.16-104,950.20-43,780.94

Finding the Fourth Proportional to 76,045.16, 104,950.20 and 43,780.94

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Solution

The fourth proportional to 76,045.16, 104,950.20 and 43,780.94 is: 60,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,045.16 : 104,950.20 = 43,780.94 : x
  2. Step 2: Convert to fraction form
    76,045.16/104,950.20 = 43,780.94/x
  3. Step 3: Cross multiply
    76,045.16x = 104,950.20 × 43,780.94
  4. Step 4: Simplify right side
    76,045.16x = 4,594,818,409.19
  5. Step 5: Solve for x
    x = 4,594,818,409.19/76,045.16
  6. Step 6: Final answer
    x = 60,422.23

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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.