Home / 86,021.40-118,688.76-50,190.96

Finding the Fourth Proportional to 86,021.40, 118,688.76 and 50,190.96

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Solution

The fourth proportional to 86,021.40, 118,688.76 and 50,190.96 is: 69,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,021.40 : 118,688.76 = 50,190.96 : x
  2. Step 2: Convert to fraction form
    86,021.40/118,688.76 = 50,190.96/x
  3. Step 3: Cross multiply
    86,021.40x = 118,688.76 × 50,190.96
  4. Step 4: Simplify right side
    86,021.40x = 5,957,102,805.61
  5. Step 5: Solve for x
    x = 5,957,102,805.61/86,021.40
  6. Step 6: Final answer
    x = 69,251.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.