Home / 53,856.40-80,784.60-34,157.20

Finding the Fourth Proportional to 53,856.40, 80,784.60 and 34,157.20

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Solution

The fourth proportional to 53,856.40, 80,784.60 and 34,157.20 is: 51,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,856.40 : 80,784.60 = 34,157.20 : x
  2. Step 2: Convert to fraction form
    53,856.40/80,784.60 = 34,157.20/x
  3. Step 3: Cross multiply
    53,856.40x = 80,784.60 × 34,157.20
  4. Step 4: Simplify right side
    53,856.40x = 2,759,375,739.12
  5. Step 5: Solve for x
    x = 2,759,375,739.12/53,856.40
  6. Step 6: Final answer
    x = 51,235.80

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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.