Home / 55,693.21-76,849.55-31,821.43

Finding the Fourth Proportional to 55,693.21, 76,849.55 and 31,821.43

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Solution

The fourth proportional to 55,693.21, 76,849.55 and 31,821.43 is: 43,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,693.21 : 76,849.55 = 31,821.43 : x
  2. Step 2: Convert to fraction form
    55,693.21/76,849.55 = 31,821.43/x
  3. Step 3: Cross multiply
    55,693.21x = 76,849.55 × 31,821.43
  4. Step 4: Simplify right side
    55,693.21x = 2,445,462,575.86
  5. Step 5: Solve for x
    x = 2,445,462,575.86/55,693.21
  6. Step 6: Final answer
    x = 43,909.53

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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.