Home / 87,419.63-130,955.83-67,359.52

Finding the Fourth Proportional to 87,419.63, 130,955.83 and 67,359.52

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Solution

The fourth proportional to 87,419.63, 130,955.83 and 67,359.52 is: 100,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,419.63 : 130,955.83 = 67,359.52 : x
  2. Step 2: Convert to fraction form
    87,419.63/130,955.83 = 67,359.52/x
  3. Step 3: Cross multiply
    87,419.63x = 130,955.83 × 67,359.52
  4. Step 4: Simplify right side
    87,419.63x = 8,821,121,845.30
  5. Step 5: Solve for x
    x = 8,821,121,845.30/87,419.63
  6. Step 6: Final answer
    x = 100,905.50

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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.