Home / 87,022.20-130,533.30-21,358.20

Finding the Fourth Proportional to 87,022.20, 130,533.30 and 21,358.20

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Solution

The fourth proportional to 87,022.20, 130,533.30 and 21,358.20 is: 32,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,022.20 : 130,533.30 = 21,358.20 : x
  2. Step 2: Convert to fraction form
    87,022.20/130,533.30 = 21,358.20/x
  3. Step 3: Cross multiply
    87,022.20x = 130,533.30 × 21,358.20
  4. Step 4: Simplify right side
    87,022.20x = 2,787,956,328.06
  5. Step 5: Solve for x
    x = 2,787,956,328.06/87,022.20
  6. Step 6: Final answer
    x = 32,037.30

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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.