Home / 76,724.76-105,837.75-63,868.85

Finding the Fourth Proportional to 76,724.76, 105,837.75 and 63,868.85

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Solution

The fourth proportional to 76,724.76, 105,837.75 and 63,868.85 is: 88,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,724.76 : 105,837.75 = 63,868.85 : x
  2. Step 2: Convert to fraction form
    76,724.76/105,837.75 = 63,868.85/x
  3. Step 3: Cross multiply
    76,724.76x = 105,837.75 × 63,868.85
  4. Step 4: Simplify right side
    76,724.76x = 6,759,734,849.90
  5. Step 5: Solve for x
    x = 6,759,734,849.90/76,724.76
  6. Step 6: Final answer
    x = 88,103.69

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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.