Home / 42,072.97-63,112.93-30,281.63

Finding the Fourth Proportional to 42,072.97, 63,112.93 and 30,281.63

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Solution

The fourth proportional to 42,072.97, 63,112.93 and 30,281.63 is: 45,424.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,072.97 : 63,112.93 = 30,281.63 : x
  2. Step 2: Convert to fraction form
    42,072.97/63,112.93 = 30,281.63/x
  3. Step 3: Cross multiply
    42,072.97x = 63,112.93 × 30,281.63
  4. Step 4: Simplify right side
    42,072.97x = 1,911,162,154.62
  5. Step 5: Solve for x
    x = 1,911,162,154.62/42,072.97
  6. Step 6: Final answer
    x = 45,424.94

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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.