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Finding the Fourth Proportional to 86,461.32, 119,239 and 73,760.32

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Solution

The fourth proportional to 86,461.32, 119,239 and 73,760.32 is: 101,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,461.32 : 119,239 = 73,760.32 : x
  2. Step 2: Convert to fraction form
    86,461.32/119,239 = 73,760.32/x
  3. Step 3: Cross multiply
    86,461.32x = 119,239 × 73,760.32
  4. Step 4: Simplify right side
    86,461.32x = 8,795,106,796.48
  5. Step 5: Solve for x
    x = 8,795,106,796.48/86,461.32
  6. Step 6: Final answer
    x = 101,723.02

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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.