Home / 87,298.75-120,466.60-51,480.55

Finding the Fourth Proportional to 87,298.75, 120,466.60 and 51,480.55

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Solution

The fourth proportional to 87,298.75, 120,466.60 and 51,480.55 is: 71,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,298.75 : 120,466.60 = 51,480.55 : x
  2. Step 2: Convert to fraction form
    87,298.75/120,466.60 = 51,480.55/x
  3. Step 3: Cross multiply
    87,298.75x = 120,466.60 × 51,480.55
  4. Step 4: Simplify right side
    87,298.75x = 6,201,686,824.63
  5. Step 5: Solve for x
    x = 6,201,686,824.63/87,298.75
  6. Step 6: Final answer
    x = 71,039.81

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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.