Home / 78,725.90-108,641.76-44,734.42

Finding the Fourth Proportional to 78,725.90, 108,641.76 and 44,734.42

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Solution

The fourth proportional to 78,725.90, 108,641.76 and 44,734.42 is: 61,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725.90 : 108,641.76 = 44,734.42 : x
  2. Step 2: Convert to fraction form
    78,725.90/108,641.76 = 44,734.42/x
  3. Step 3: Cross multiply
    78,725.90x = 108,641.76 × 44,734.42
  4. Step 4: Simplify right side
    78,725.90x = 4,860,025,849.77
  5. Step 5: Solve for x
    x = 4,860,025,849.77/78,725.90
  6. Step 6: Final answer
    x = 61,733.50

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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.