Home / 76,430.82-113,858.19-74,109.36

Finding the Fourth Proportional to 76,430.82, 113,858.19 and 74,109.36

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Solution

The fourth proportional to 76,430.82, 113,858.19 and 74,109.36 is: 110,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,430.82 : 113,858.19 = 74,109.36 : x
  2. Step 2: Convert to fraction form
    76,430.82/113,858.19 = 74,109.36/x
  3. Step 3: Cross multiply
    76,430.82x = 113,858.19 × 74,109.36
  4. Step 4: Simplify right side
    76,430.82x = 8,437,957,591.66
  5. Step 5: Solve for x
    x = 8,437,957,591.66/76,430.82
  6. Step 6: Final answer
    x = 110,399.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.