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Finding the Fourth Proportional to 86,602.32, 119,529 and 50,811.12

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Solution

The fourth proportional to 86,602.32, 119,529 and 50,811.12 is: 70,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,602.32 : 119,529 = 50,811.12 : x
  2. Step 2: Convert to fraction form
    86,602.32/119,529 = 50,811.12/x
  3. Step 3: Cross multiply
    86,602.32x = 119,529 × 50,811.12
  4. Step 4: Simplify right side
    86,602.32x = 6,073,402,362.48
  5. Step 5: Solve for x
    x = 6,073,402,362.48/86,602.32
  6. Step 6: Final answer
    x = 70,129.79

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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.