Home / 86,456.28-119,408.04-58,112.76

Finding the Fourth Proportional to 86,456.28, 119,408.04 and 58,112.76

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Solution

The fourth proportional to 86,456.28, 119,408.04 and 58,112.76 is: 80,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,456.28 : 119,408.04 = 58,112.76 : x
  2. Step 2: Convert to fraction form
    86,456.28/119,408.04 = 58,112.76/x
  3. Step 3: Cross multiply
    86,456.28x = 119,408.04 × 58,112.76
  4. Step 4: Simplify right side
    86,456.28x = 6,939,130,770.59
  5. Step 5: Solve for x
    x = 6,939,130,770.59/86,456.28
  6. Step 6: Final answer
    x = 80,261.73

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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.