Home / 85,650.36-128,591.68-48,236.48

Finding the Fourth Proportional to 85,650.36, 128,591.68 and 48,236.48

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Solution

The fourth proportional to 85,650.36, 128,591.68 and 48,236.48 is: 72,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,650.36 : 128,591.68 = 48,236.48 : x
  2. Step 2: Convert to fraction form
    85,650.36/128,591.68 = 48,236.48/x
  3. Step 3: Cross multiply
    85,650.36x = 128,591.68 × 48,236.48
  4. Step 4: Simplify right side
    85,650.36x = 6,202,810,000.49
  5. Step 5: Solve for x
    x = 6,202,810,000.49/85,650.36
  6. Step 6: Final answer
    x = 72,420.13

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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.