Home / 53,768.40-80,652.60-28,885.20

Finding the Fourth Proportional to 53,768.40, 80,652.60 and 28,885.20

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Solution

The fourth proportional to 53,768.40, 80,652.60 and 28,885.20 is: 43,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,768.40 : 80,652.60 = 28,885.20 : x
  2. Step 2: Convert to fraction form
    53,768.40/80,652.60 = 28,885.20/x
  3. Step 3: Cross multiply
    53,768.40x = 80,652.60 × 28,885.20
  4. Step 4: Simplify right side
    53,768.40x = 2,329,666,481.52
  5. Step 5: Solve for x
    x = 2,329,666,481.52/53,768.40
  6. Step 6: Final answer
    x = 43,327.80

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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.