Home / 87,025.28-130,303.68-45,384.32

Finding the Fourth Proportional to 87,025.28, 130,303.68 and 45,384.32

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Solution

The fourth proportional to 87,025.28, 130,303.68 and 45,384.32 is: 67,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,025.28 : 130,303.68 = 45,384.32 : x
  2. Step 2: Convert to fraction form
    87,025.28/130,303.68 = 45,384.32/x
  3. Step 3: Cross multiply
    87,025.28x = 130,303.68 × 45,384.32
  4. Step 4: Simplify right side
    87,025.28x = 5,913,743,910.30
  5. Step 5: Solve for x
    x = 5,913,743,910.30/87,025.28
  6. Step 6: Final answer
    x = 67,954.32

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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.