Home / 87,771.60-121,124.82-47,485.34

Finding the Fourth Proportional to 87,771.60, 121,124.82 and 47,485.34

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Solution

The fourth proportional to 87,771.60, 121,124.82 and 47,485.34 is: 65,529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,771.60 : 121,124.82 = 47,485.34 : x
  2. Step 2: Convert to fraction form
    87,771.60/121,124.82 = 47,485.34/x
  3. Step 3: Cross multiply
    87,771.60x = 121,124.82 × 47,485.34
  4. Step 4: Simplify right side
    87,771.60x = 5,751,653,019.70
  5. Step 5: Solve for x
    x = 5,751,653,019.70/87,771.60
  6. Step 6: Final answer
    x = 65,529.77

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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.