Home / 76,566.52-105,602.92-67,961.60

Finding the Fourth Proportional to 76,566.52, 105,602.92 and 67,961.60

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Solution

The fourth proportional to 76,566.52, 105,602.92 and 67,961.60 is: 93,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,566.52 : 105,602.92 = 67,961.60 : x
  2. Step 2: Convert to fraction form
    76,566.52/105,602.92 = 67,961.60/x
  3. Step 3: Cross multiply
    76,566.52x = 105,602.92 × 67,961.60
  4. Step 4: Simplify right side
    76,566.52x = 7,176,943,407.87
  5. Step 5: Solve for x
    x = 7,176,943,407.87/76,566.52
  6. Step 6: Final answer
    x = 93,734.75

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1.5x scale

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.