Home / 76,059.12-104,990.40-68,086.92

Finding the Fourth Proportional to 76,059.12, 104,990.40 and 68,086.92

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Solution

The fourth proportional to 76,059.12, 104,990.40 and 68,086.92 is: 93,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,059.12 : 104,990.40 = 68,086.92 : x
  2. Step 2: Convert to fraction form
    76,059.12/104,990.40 = 68,086.92/x
  3. Step 3: Cross multiply
    76,059.12x = 104,990.40 × 68,086.92
  4. Step 4: Simplify right side
    76,059.12x = 7,148,472,965.57
  5. Step 5: Solve for x
    x = 7,148,472,965.57/76,059.12
  6. Step 6: Final answer
    x = 93,985.74

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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.