Home / 87,426.46-120,692.09-57,258.01

Finding the Fourth Proportional to 87,426.46, 120,692.09 and 57,258.01

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Solution

The fourth proportional to 87,426.46, 120,692.09 and 57,258.01 is: 79,044.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,426.46 : 120,692.09 = 57,258.01 : x
  2. Step 2: Convert to fraction form
    87,426.46/120,692.09 = 57,258.01/x
  3. Step 3: Cross multiply
    87,426.46x = 120,692.09 × 57,258.01
  4. Step 4: Simplify right side
    87,426.46x = 6,910,588,308.12
  5. Step 5: Solve for x
    x = 6,910,588,308.12/87,426.46
  6. Step 6: Final answer
    x = 79,044.59

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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.