Home / 85,457.75-128,161.91-32,854.73

Finding the Fourth Proportional to 85,457.75, 128,161.91 and 32,854.73

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Solution

The fourth proportional to 85,457.75, 128,161.91 and 32,854.73 is: 49,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,457.75 : 128,161.91 = 32,854.73 : x
  2. Step 2: Convert to fraction form
    85,457.75/128,161.91 = 32,854.73/x
  3. Step 3: Cross multiply
    85,457.75x = 128,161.91 × 32,854.73
  4. Step 4: Simplify right side
    85,457.75x = 4,210,724,390.66
  5. Step 5: Solve for x
    x = 4,210,724,390.66/85,457.75
  6. Step 6: Final answer
    x = 49,272.59

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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.