Home / 76,283.72-105,267.30-42,291.08

Finding the Fourth Proportional to 76,283.72, 105,267.30 and 42,291.08

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Solution

The fourth proportional to 76,283.72, 105,267.30 and 42,291.08 is: 58,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,283.72 : 105,267.30 = 42,291.08 : x
  2. Step 2: Convert to fraction form
    76,283.72/105,267.30 = 42,291.08/x
  3. Step 3: Cross multiply
    76,283.72x = 105,267.30 × 42,291.08
  4. Step 4: Simplify right side
    76,283.72x = 4,451,867,805.68
  5. Step 5: Solve for x
    x = 4,451,867,805.68/76,283.72
  6. Step 6: Final answer
    x = 58,359.34

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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.