Home / 51,639.20-71,277.36-30,425.32

Finding the Fourth Proportional to 51,639.20, 71,277.36 and 30,425.32

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Solution

The fourth proportional to 51,639.20, 71,277.36 and 30,425.32 is: 41,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.20 : 71,277.36 = 30,425.32 : x
  2. Step 2: Convert to fraction form
    51,639.20/71,277.36 = 30,425.32/x
  3. Step 3: Cross multiply
    51,639.20x = 71,277.36 × 30,425.32
  4. Step 4: Simplify right side
    51,639.20x = 2,168,636,486.76
  5. Step 5: Solve for x
    x = 2,168,636,486.76/51,639.20
  6. Step 6: Final answer
    x = 41,995.94

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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.