Home / 86,558.89-129,793.11-39,151.33

Finding the Fourth Proportional to 86,558.89, 129,793.11 and 39,151.33

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Solution

The fourth proportional to 86,558.89, 129,793.11 and 39,151.33 is: 58,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,558.89 : 129,793.11 = 39,151.33 : x
  2. Step 2: Convert to fraction form
    86,558.89/129,793.11 = 39,151.33/x
  3. Step 3: Cross multiply
    86,558.89x = 129,793.11 × 39,151.33
  4. Step 4: Simplify right side
    86,558.89x = 5,081,573,250.24
  5. Step 5: Solve for x
    x = 5,081,573,250.24/86,558.89
  6. Step 6: Final answer
    x = 58,706.55

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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.