Home / 77,426.60-116,226.30-72,350.60

Finding the Fourth Proportional to 77,426.60, 116,226.30 and 72,350.60

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Solution

The fourth proportional to 77,426.60, 116,226.30 and 72,350.60 is: 108,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,426.60 : 116,226.30 = 72,350.60 : x
  2. Step 2: Convert to fraction form
    77,426.60/116,226.30 = 72,350.60/x
  3. Step 3: Cross multiply
    77,426.60x = 116,226.30 × 72,350.60
  4. Step 4: Simplify right side
    77,426.60x = 8,409,042,540.78
  5. Step 5: Solve for x
    x = 8,409,042,540.78/77,426.60
  6. Step 6: Final answer
    x = 108,606.64

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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.