Home / 77,349.20-116,023.80-72,683.60

Finding the Fourth Proportional to 77,349.20, 116,023.80 and 72,683.60

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Solution

The fourth proportional to 77,349.20, 116,023.80 and 72,683.60 is: 109,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,349.20 : 116,023.80 = 72,683.60 : x
  2. Step 2: Convert to fraction form
    77,349.20/116,023.80 = 72,683.60/x
  3. Step 3: Cross multiply
    77,349.20x = 116,023.80 × 72,683.60
  4. Step 4: Simplify right side
    77,349.20x = 8,433,027,469.68
  5. Step 5: Solve for x
    x = 8,433,027,469.68/77,349.20
  6. Step 6: Final answer
    x = 109,025.40

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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.