Home / 51,382.08-70,910.56-30,153.60

Finding the Fourth Proportional to 51,382.08, 70,910.56 and 30,153.60

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Solution

The fourth proportional to 51,382.08, 70,910.56 and 30,153.60 is: 41,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,382.08 : 70,910.56 = 30,153.60 : x
  2. Step 2: Convert to fraction form
    51,382.08/70,910.56 = 30,153.60/x
  3. Step 3: Cross multiply
    51,382.08x = 70,910.56 × 30,153.60
  4. Step 4: Simplify right side
    51,382.08x = 2,138,208,662.02
  5. Step 5: Solve for x
    x = 2,138,208,662.02/51,382.08
  6. Step 6: Final answer
    x = 41,613.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.