Home / 86,455.63-119,407.18-58,112.11

Finding the Fourth Proportional to 86,455.63, 119,407.18 and 58,112.11

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Solution

The fourth proportional to 86,455.63, 119,407.18 and 58,112.11 is: 80,260.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,455.63 : 119,407.18 = 58,112.11 : x
  2. Step 2: Convert to fraction form
    86,455.63/119,407.18 = 58,112.11/x
  3. Step 3: Cross multiply
    86,455.63x = 119,407.18 × 58,112.11
  4. Step 4: Simplify right side
    86,455.63x = 6,939,002,581.91
  5. Step 5: Solve for x
    x = 6,939,002,581.91/86,455.63
  6. Step 6: Final answer
    x = 80,260.86

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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.