Home / 87,353.06-120,573.16-56,725.34

Finding the Fourth Proportional to 87,353.06, 120,573.16 and 56,725.34

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Solution

The fourth proportional to 87,353.06, 120,573.16 and 56,725.34 is: 78,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,353.06 : 120,573.16 = 56,725.34 : x
  2. Step 2: Convert to fraction form
    87,353.06/120,573.16 = 56,725.34/x
  3. Step 3: Cross multiply
    87,353.06x = 120,573.16 × 56,725.34
  4. Step 4: Simplify right side
    87,353.06x = 6,839,553,495.87
  5. Step 5: Solve for x
    x = 6,839,553,495.87/87,353.06
  6. Step 6: Final answer
    x = 78,297.81

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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.