Home / 86,340.40-119,149.32-48,100.36

Finding the Fourth Proportional to 86,340.40, 119,149.32 and 48,100.36

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Solution

The fourth proportional to 86,340.40, 119,149.32 and 48,100.36 is: 66,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,340.40 : 119,149.32 = 48,100.36 : x
  2. Step 2: Convert to fraction form
    86,340.40/119,149.32 = 48,100.36/x
  3. Step 3: Cross multiply
    86,340.40x = 119,149.32 × 48,100.36
  4. Step 4: Simplify right side
    86,340.40x = 5,731,125,185.76
  5. Step 5: Solve for x
    x = 5,731,125,185.76/86,340.40
  6. Step 6: Final answer
    x = 66,378.26

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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.