Home / 55,630.08-76,777.92-31,759.20

Finding the Fourth Proportional to 55,630.08, 76,777.92 and 31,759.20

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Solution

The fourth proportional to 55,630.08, 76,777.92 and 31,759.20 is: 43,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,630.08 : 76,777.92 = 31,759.20 : x
  2. Step 2: Convert to fraction form
    55,630.08/76,777.92 = 31,759.20/x
  3. Step 3: Cross multiply
    55,630.08x = 76,777.92 × 31,759.20
  4. Step 4: Simplify right side
    55,630.08x = 2,438,405,316.86
  5. Step 5: Solve for x
    x = 2,438,405,316.86/55,630.08
  6. Step 6: Final answer
    x = 43,832.50

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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.