Home / 76,729.32-105,849.79-59,616.45

Finding the Fourth Proportional to 76,729.32, 105,849.79 and 59,616.45

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Solution

The fourth proportional to 76,729.32, 105,849.79 and 59,616.45 is: 82,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,729.32 : 105,849.79 = 59,616.45 : x
  2. Step 2: Convert to fraction form
    76,729.32/105,849.79 = 59,616.45/x
  3. Step 3: Cross multiply
    76,729.32x = 105,849.79 × 59,616.45
  4. Step 4: Simplify right side
    76,729.32x = 6,310,388,713.05
  5. Step 5: Solve for x
    x = 6,310,388,713.05/76,729.32
  6. Step 6: Final answer
    x = 82,242.21

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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.