Home / 53,455.20-80,247.60-53,066.40

Finding the Fourth Proportional to 53,455.20, 80,247.60 and 53,066.40

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Solution

The fourth proportional to 53,455.20, 80,247.60 and 53,066.40 is: 79,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,455.20 : 80,247.60 = 53,066.40 : x
  2. Step 2: Convert to fraction form
    53,455.20/80,247.60 = 53,066.40/x
  3. Step 3: Cross multiply
    53,455.20x = 80,247.60 × 53,066.40
  4. Step 4: Simplify right side
    53,455.20x = 4,258,451,240.64
  5. Step 5: Solve for x
    x = 4,258,451,240.64/53,455.20
  6. Step 6: Final answer
    x = 79,663.93

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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.