Home / 76,639.50-114,909.44-36,636.84

Finding the Fourth Proportional to 76,639.50, 114,909.44 and 36,636.84

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Solution

The fourth proportional to 76,639.50, 114,909.44 and 36,636.84 is: 54,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,639.50 : 114,909.44 = 36,636.84 : x
  2. Step 2: Convert to fraction form
    76,639.50/114,909.44 = 36,636.84/x
  3. Step 3: Cross multiply
    76,639.50x = 114,909.44 × 36,636.84
  4. Step 4: Simplify right side
    76,639.50x = 4,209,918,584.59
  5. Step 5: Solve for x
    x = 4,209,918,584.59/76,639.50
  6. Step 6: Final answer
    x = 54,931.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.