Home / 77,952.12-116,928.96-28,067.80

Finding the Fourth Proportional to 77,952.12, 116,928.96 and 28,067.80

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Solution

The fourth proportional to 77,952.12, 116,928.96 and 28,067.80 is: 42,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,952.12 : 116,928.96 = 28,067.80 : x
  2. Step 2: Convert to fraction form
    77,952.12/116,928.96 = 28,067.80/x
  3. Step 3: Cross multiply
    77,952.12x = 116,928.96 × 28,067.80
  4. Step 4: Simplify right side
    77,952.12x = 3,281,938,663.49
  5. Step 5: Solve for x
    x = 3,281,938,663.49/77,952.12
  6. Step 6: Final answer
    x = 42,101.98

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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.