Home / 87,099.20-130,473.84-42,698.24

Finding the Fourth Proportional to 87,099.20, 130,473.84 and 42,698.24

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Solution

The fourth proportional to 87,099.20, 130,473.84 and 42,698.24 is: 63,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,099.20 : 130,473.84 = 42,698.24 : x
  2. Step 2: Convert to fraction form
    87,099.20/130,473.84 = 42,698.24/x
  3. Step 3: Cross multiply
    87,099.20x = 130,473.84 × 42,698.24
  4. Step 4: Simplify right side
    87,099.20x = 5,571,003,334.04
  5. Step 5: Solve for x
    x = 5,571,003,334.04/87,099.20
  6. Step 6: Final answer
    x = 63,961.59

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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.