Home / 77,965.80-116,749.44-42,866.88

Finding the Fourth Proportional to 77,965.80, 116,749.44 and 42,866.88

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Solution

The fourth proportional to 77,965.80, 116,749.44 and 42,866.88 is: 64,190.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.80 : 116,749.44 = 42,866.88 : x
  2. Step 2: Convert to fraction form
    77,965.80/116,749.44 = 42,866.88/x
  3. Step 3: Cross multiply
    77,965.80x = 116,749.44 × 42,866.88
  4. Step 4: Simplify right side
    77,965.80x = 5,004,684,234.55
  5. Step 5: Solve for x
    x = 5,004,684,234.55/77,965.80
  6. Step 6: Final answer
    x = 64,190.76

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1.5x scale

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.