Home / 92,815.88-128,085.16-50,374.43

Finding the Fourth Proportional to 92,815.88, 128,085.16 and 50,374.43

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Solution

The fourth proportional to 92,815.88, 128,085.16 and 50,374.43 is: 69,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,815.88 : 128,085.16 = 50,374.43 : x
  2. Step 2: Convert to fraction form
    92,815.88/128,085.16 = 50,374.43/x
  3. Step 3: Cross multiply
    92,815.88x = 128,085.16 × 50,374.43
  4. Step 4: Simplify right side
    92,815.88x = 6,452,216,926.46
  5. Step 5: Solve for x
    x = 6,452,216,926.46/92,815.88
  6. Step 6: Final answer
    x = 69,516.30

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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.