Home / 47,760.75-71,136.61-45,262.71

Finding the Fourth Proportional to 47,760.75, 71,136.61 and 45,262.71

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Solution

The fourth proportional to 47,760.75, 71,136.61 and 45,262.71 is: 67,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,760.75 : 71,136.61 = 45,262.71 : x
  2. Step 2: Convert to fraction form
    47,760.75/71,136.61 = 45,262.71/x
  3. Step 3: Cross multiply
    47,760.75x = 71,136.61 × 45,262.71
  4. Step 4: Simplify right side
    47,760.75x = 3,219,835,635.66
  5. Step 5: Solve for x
    x = 3,219,835,635.66/47,760.75
  6. Step 6: Final answer
    x = 67,415.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.