Home / 87,362.28-120,399.84-63,447.30

Finding the Fourth Proportional to 87,362.28, 120,399.84 and 63,447.30

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Solution

The fourth proportional to 87,362.28, 120,399.84 and 63,447.30 is: 87,441.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,362.28 : 120,399.84 = 63,447.30 : x
  2. Step 2: Convert to fraction form
    87,362.28/120,399.84 = 63,447.30/x
  3. Step 3: Cross multiply
    87,362.28x = 120,399.84 × 63,447.30
  4. Step 4: Simplify right side
    87,362.28x = 7,639,044,768.43
  5. Step 5: Solve for x
    x = 7,639,044,768.43/87,362.28
  6. Step 6: Final answer
    x = 87,441.00

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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.