Home / 87,285.28-120,447.92-51,473.60

Finding the Fourth Proportional to 87,285.28, 120,447.92 and 51,473.60

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Solution

The fourth proportional to 87,285.28, 120,447.92 and 51,473.60 is: 71,030.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,285.28 : 120,447.92 = 51,473.60 : x
  2. Step 2: Convert to fraction form
    87,285.28/120,447.92 = 51,473.60/x
  3. Step 3: Cross multiply
    87,285.28x = 120,447.92 × 51,473.60
  4. Step 4: Simplify right side
    87,285.28x = 6,199,888,054.91
  5. Step 5: Solve for x
    x = 6,199,888,054.91/87,285.28
  6. Step 6: Final answer
    x = 71,030.17

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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.