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Finding the Fourth Proportional to 86,552.20, 129,901.20 and 33,999.40

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Solution

The fourth proportional to 86,552.20, 129,901.20 and 33,999.40 is: 51,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,552.20 : 129,901.20 = 33,999.40 : x
  2. Step 2: Convert to fraction form
    86,552.20/129,901.20 = 33,999.40/x
  3. Step 3: Cross multiply
    86,552.20x = 129,901.20 × 33,999.40
  4. Step 4: Simplify right side
    86,552.20x = 4,416,562,859.28
  5. Step 5: Solve for x
    x = 4,416,562,859.28/86,552.20
  6. Step 6: Final answer
    x = 51,027.74

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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.