Home / 86,909.20-130,366.23-30,741.37

Finding the Fourth Proportional to 86,909.20, 130,366.23 and 30,741.37

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Solution

The fourth proportional to 86,909.20, 130,366.23 and 30,741.37 is: 46,112.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909.20 : 130,366.23 = 30,741.37 : x
  2. Step 2: Convert to fraction form
    86,909.20/130,366.23 = 30,741.37/x
  3. Step 3: Cross multiply
    86,909.20x = 130,366.23 × 30,741.37
  4. Step 4: Simplify right side
    86,909.20x = 4,007,636,511.94
  5. Step 5: Solve for x
    x = 4,007,636,511.94/86,909.20
  6. Step 6: Final answer
    x = 46,112.91

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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.