Home / 87,257.07-120,411.41-53,322.32

Finding the Fourth Proportional to 87,257.07, 120,411.41 and 53,322.32

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Solution

The fourth proportional to 87,257.07, 120,411.41 and 53,322.32 is: 73,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,257.07 : 120,411.41 = 53,322.32 : x
  2. Step 2: Convert to fraction form
    87,257.07/120,411.41 = 53,322.32/x
  3. Step 3: Cross multiply
    87,257.07x = 120,411.41 × 53,322.32
  4. Step 4: Simplify right side
    87,257.07x = 6,420,615,735.67
  5. Step 5: Solve for x
    x = 6,420,615,735.67/87,257.07
  6. Step 6: Final answer
    x = 73,582.76

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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.