Home / 76,745.27-105,906.87-42,753.71

Finding the Fourth Proportional to 76,745.27, 105,906.87 and 42,753.71

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Solution

The fourth proportional to 76,745.27, 105,906.87 and 42,753.71 is: 58,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,745.27 : 105,906.87 = 42,753.71 : x
  2. Step 2: Convert to fraction form
    76,745.27/105,906.87 = 42,753.71/x
  3. Step 3: Cross multiply
    76,745.27x = 105,906.87 × 42,753.71
  4. Step 4: Simplify right side
    76,745.27x = 4,527,911,606.99
  5. Step 5: Solve for x
    x = 4,527,911,606.99/76,745.27
  6. Step 6: Final answer
    x = 58,999.23

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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.