Home / 87,438.47-131,288.93-50,040.77

Finding the Fourth Proportional to 87,438.47, 131,288.93 and 50,040.77

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Solution

The fourth proportional to 87,438.47, 131,288.93 and 50,040.77 is: 75,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,438.47 : 131,288.93 = 50,040.77 : x
  2. Step 2: Convert to fraction form
    87,438.47/131,288.93 = 50,040.77/x
  3. Step 3: Cross multiply
    87,438.47x = 131,288.93 × 50,040.77
  4. Step 4: Simplify right side
    87,438.47x = 6,569,798,899.47
  5. Step 5: Solve for x
    x = 6,569,798,899.47/87,438.47
  6. Step 6: Final answer
    x = 75,136.25

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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.