Home / 76,388.19-105,435.08-52,198.95

Finding the Fourth Proportional to 76,388.19, 105,435.08 and 52,198.95

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Solution

The fourth proportional to 76,388.19, 105,435.08 and 52,198.95 is: 72,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,388.19 : 105,435.08 = 52,198.95 : x
  2. Step 2: Convert to fraction form
    76,388.19/105,435.08 = 52,198.95/x
  3. Step 3: Cross multiply
    76,388.19x = 105,435.08 × 52,198.95
  4. Step 4: Simplify right side
    76,388.19x = 5,503,600,167.61
  5. Step 5: Solve for x
    x = 5,503,600,167.61/76,388.19
  6. Step 6: Final answer
    x = 72,047.79

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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.