Home / 87,271.47-130,796.37-45,143.64

Finding the Fourth Proportional to 87,271.47, 130,796.37 and 45,143.64

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Solution

The fourth proportional to 87,271.47, 130,796.37 and 45,143.64 is: 67,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,271.47 : 130,796.37 = 45,143.64 : x
  2. Step 2: Convert to fraction form
    87,271.47/130,796.37 = 45,143.64/x
  3. Step 3: Cross multiply
    87,271.47x = 130,796.37 × 45,143.64
  4. Step 4: Simplify right side
    87,271.47x = 5,904,624,240.59
  5. Step 5: Solve for x
    x = 5,904,624,240.59/87,271.47
  6. Step 6: Final answer
    x = 67,658.13

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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.