Home / 87,518.40-131,058.90-57,775.20

Finding the Fourth Proportional to 87,518.40, 131,058.90 and 57,775.20

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Solution

The fourth proportional to 87,518.40, 131,058.90 and 57,775.20 is: 86,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,518.40 : 131,058.90 = 57,775.20 : x
  2. Step 2: Convert to fraction form
    87,518.40/131,058.90 = 57,775.20/x
  3. Step 3: Cross multiply
    87,518.40x = 131,058.90 × 57,775.20
  4. Step 4: Simplify right side
    87,518.40x = 7,571,954,159.28
  5. Step 5: Solve for x
    x = 7,571,954,159.28/87,518.40
  6. Step 6: Final answer
    x = 86,518.43

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1.5x scale

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.