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Finding the Fourth Proportional to 86,373.74, 129,186.09 and 50,750.25

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Solution

The fourth proportional to 86,373.74, 129,186.09 and 50,750.25 is: 75,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,373.74 : 129,186.09 = 50,750.25 : x
  2. Step 2: Convert to fraction form
    86,373.74/129,186.09 = 50,750.25/x
  3. Step 3: Cross multiply
    86,373.74x = 129,186.09 × 50,750.25
  4. Step 4: Simplify right side
    86,373.74x = 6,556,225,879.57
  5. Step 5: Solve for x
    x = 6,556,225,879.57/86,373.74
  6. Step 6: Final answer
    x = 75,905.31

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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.