Home / 53,181.80-73,393.76-30,520.60

Finding the Fourth Proportional to 53,181.80, 73,393.76 and 30,520.60

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Solution

The fourth proportional to 53,181.80, 73,393.76 and 30,520.60 is: 42,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,181.80 : 73,393.76 = 30,520.60 : x
  2. Step 2: Convert to fraction form
    53,181.80/73,393.76 = 30,520.60/x
  3. Step 3: Cross multiply
    53,181.80x = 73,393.76 × 30,520.60
  4. Step 4: Simplify right side
    53,181.80x = 2,240,021,484.27
  5. Step 5: Solve for x
    x = 2,240,021,484.27/53,181.80
  6. Step 6: Final answer
    x = 42,120.08

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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.