Home / 86,633.38-129,802.20-47,119.96

Finding the Fourth Proportional to 86,633.38, 129,802.20 and 47,119.96

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Solution

The fourth proportional to 86,633.38, 129,802.20 and 47,119.96 is: 70,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,633.38 : 129,802.20 = 47,119.96 : x
  2. Step 2: Convert to fraction form
    86,633.38/129,802.20 = 47,119.96/x
  3. Step 3: Cross multiply
    86,633.38x = 129,802.20 × 47,119.96
  4. Step 4: Simplify right side
    86,633.38x = 6,116,274,471.91
  5. Step 5: Solve for x
    x = 6,116,274,471.91/86,633.38
  6. Step 6: Final answer
    x = 70,599.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.