Home / 86,321.09-119,139.63-48,595.34

Finding the Fourth Proportional to 86,321.09, 119,139.63 and 48,595.34

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Solution

The fourth proportional to 86,321.09, 119,139.63 and 48,595.34 is: 67,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,321.09 : 119,139.63 = 48,595.34 : x
  2. Step 2: Convert to fraction form
    86,321.09/119,139.63 = 48,595.34/x
  3. Step 3: Cross multiply
    86,321.09x = 119,139.63 × 48,595.34
  4. Step 4: Simplify right side
    86,321.09x = 5,789,630,231.63
  5. Step 5: Solve for x
    x = 5,789,630,231.63/86,321.09
  6. Step 6: Final answer
    x = 67,070.87

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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.