Home / 53,853.20-80,826.48-53,728.66

Finding the Fourth Proportional to 53,853.20, 80,826.48 and 53,728.66

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Solution

The fourth proportional to 53,853.20, 80,826.48 and 53,728.66 is: 80,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,853.20 : 80,826.48 = 53,728.66 : x
  2. Step 2: Convert to fraction form
    53,853.20/80,826.48 = 53,728.66/x
  3. Step 3: Cross multiply
    53,853.20x = 80,826.48 × 53,728.66
  4. Step 4: Simplify right side
    53,853.20x = 4,342,698,462.92
  5. Step 5: Solve for x
    x = 4,342,698,462.92/53,853.20
  6. Step 6: Final answer
    x = 80,639.56

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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.