Home / 85,602.20-128,378.23-32,255.69

Finding the Fourth Proportional to 85,602.20, 128,378.23 and 32,255.69

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Solution

The fourth proportional to 85,602.20, 128,378.23 and 32,255.69 is: 48,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,602.20 : 128,378.23 = 32,255.69 : x
  2. Step 2: Convert to fraction form
    85,602.20/128,378.23 = 32,255.69/x
  3. Step 3: Cross multiply
    85,602.20x = 128,378.23 × 32,255.69
  4. Step 4: Simplify right side
    85,602.20x = 4,140,928,629.94
  5. Step 5: Solve for x
    x = 4,140,928,629.94/85,602.20
  6. Step 6: Final answer
    x = 48,374.09

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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.