Home / 86,849.94-119,856.33-56,655.30

Finding the Fourth Proportional to 86,849.94, 119,856.33 and 56,655.30

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Solution

The fourth proportional to 86,849.94, 119,856.33 and 56,655.30 is: 78,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,849.94 : 119,856.33 = 56,655.30 : x
  2. Step 2: Convert to fraction form
    86,849.94/119,856.33 = 56,655.30/x
  3. Step 3: Cross multiply
    86,849.94x = 119,856.33 × 56,655.30
  4. Step 4: Simplify right side
    86,849.94x = 6,790,496,333.05
  5. Step 5: Solve for x
    x = 6,790,496,333.05/86,849.94
  6. Step 6: Final answer
    x = 78,186.54

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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.