Home / 56,910.40-85,365.60-51,272.80

Finding the Fourth Proportional to 56,910.40, 85,365.60 and 51,272.80

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Solution

The fourth proportional to 56,910.40, 85,365.60 and 51,272.80 is: 76,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.40 : 85,365.60 = 51,272.80 : x
  2. Step 2: Convert to fraction form
    56,910.40/85,365.60 = 51,272.80/x
  3. Step 3: Cross multiply
    56,910.40x = 85,365.60 × 51,272.80
  4. Step 4: Simplify right side
    56,910.40x = 4,376,933,335.68
  5. Step 5: Solve for x
    x = 4,376,933,335.68/56,910.40
  6. Step 6: Final answer
    x = 76,909.20

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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.