Home / 55,375.86-76,416.03-31,500.30

Finding the Fourth Proportional to 55,375.86, 76,416.03 and 31,500.30

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Solution

The fourth proportional to 55,375.86, 76,416.03 and 31,500.30 is: 43,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,375.86 : 76,416.03 = 31,500.30 : x
  2. Step 2: Convert to fraction form
    55,375.86/76,416.03 = 31,500.30/x
  3. Step 3: Cross multiply
    55,375.86x = 76,416.03 × 31,500.30
  4. Step 4: Simplify right side
    55,375.86x = 2,407,127,869.81
  5. Step 5: Solve for x
    x = 2,407,127,869.81/55,375.86
  6. Step 6: Final answer
    x = 43,468.90

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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.