Home / 86,429.70-119,272.96-48,705.30

Finding the Fourth Proportional to 86,429.70, 119,272.96 and 48,705.30

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Solution

The fourth proportional to 86,429.70, 119,272.96 and 48,705.30 is: 67,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.70 : 119,272.96 = 48,705.30 : x
  2. Step 2: Convert to fraction form
    86,429.70/119,272.96 = 48,705.30/x
  3. Step 3: Cross multiply
    86,429.70x = 119,272.96 × 48,705.30
  4. Step 4: Simplify right side
    86,429.70x = 5,809,225,298.69
  5. Step 5: Solve for x
    x = 5,809,225,298.69/86,429.70
  6. Step 6: Final answer
    x = 67,213.30

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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.