Home / 87,573.20-120,853.55-53,581.14

Finding the Fourth Proportional to 87,573.20, 120,853.55 and 53,581.14

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Solution

The fourth proportional to 87,573.20, 120,853.55 and 53,581.14 is: 73,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.20 : 120,853.55 = 53,581.14 : x
  2. Step 2: Convert to fraction form
    87,573.20/120,853.55 = 53,581.14/x
  3. Step 3: Cross multiply
    87,573.20x = 120,853.55 × 53,581.14
  4. Step 4: Simplify right side
    87,573.20x = 6,475,470,982.05
  5. Step 5: Solve for x
    x = 6,475,470,982.05/87,573.20
  6. Step 6: Final answer
    x = 73,943.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.