Home / 76,197.75-105,153.21-42,205.50

Finding the Fourth Proportional to 76,197.75, 105,153.21 and 42,205.50

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Solution

The fourth proportional to 76,197.75, 105,153.21 and 42,205.50 is: 58,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,197.75 : 105,153.21 = 42,205.50 : x
  2. Step 2: Convert to fraction form
    76,197.75/105,153.21 = 42,205.50/x
  3. Step 3: Cross multiply
    76,197.75x = 105,153.21 × 42,205.50
  4. Step 4: Simplify right side
    76,197.75x = 4,438,043,804.66
  5. Step 5: Solve for x
    x = 4,438,043,804.66/76,197.75
  6. Step 6: Final answer
    x = 58,243.76

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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.