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Finding the Fourth Proportional to 86,628.50, 119,549.28 and 50,844.32

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Solution

The fourth proportional to 86,628.50, 119,549.28 and 50,844.32 is: 70,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,628.50 : 119,549.28 = 50,844.32 : x
  2. Step 2: Convert to fraction form
    86,628.50/119,549.28 = 50,844.32/x
  3. Step 3: Cross multiply
    86,628.50x = 119,549.28 × 50,844.32
  4. Step 4: Simplify right side
    86,628.50x = 6,078,401,250.34
  5. Step 5: Solve for x
    x = 6,078,401,250.34/86,628.50
  6. Step 6: Final answer
    x = 70,166.30

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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.