Home / 87,282.46-130,923.80-28,126.94

Finding the Fourth Proportional to 87,282.46, 130,923.80 and 28,126.94

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Solution

The fourth proportional to 87,282.46, 130,923.80 and 28,126.94 is: 42,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,282.46 : 130,923.80 = 28,126.94 : x
  2. Step 2: Convert to fraction form
    87,282.46/130,923.80 = 28,126.94/x
  3. Step 3: Cross multiply
    87,282.46x = 130,923.80 × 28,126.94
  4. Step 4: Simplify right side
    87,282.46x = 3,682,485,867.17
  5. Step 5: Solve for x
    x = 3,682,485,867.17/87,282.46
  6. Step 6: Final answer
    x = 42,190.45

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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.