Home / 87,150.31-130,395.58-51,630.70

Finding the Fourth Proportional to 87,150.31, 130,395.58 and 51,630.70

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Solution

The fourth proportional to 87,150.31, 130,395.58 and 51,630.70 is: 77,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,150.31 : 130,395.58 = 51,630.70 : x
  2. Step 2: Convert to fraction form
    87,150.31/130,395.58 = 51,630.70/x
  3. Step 3: Cross multiply
    87,150.31x = 130,395.58 × 51,630.70
  4. Step 4: Simplify right side
    87,150.31x = 6,732,415,072.31
  5. Step 5: Solve for x
    x = 6,732,415,072.31/87,150.31
  6. Step 6: Final answer
    x = 77,250.62

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1.5x scale

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.