Home / 55,487.56-76,565.52-31,289.76

Finding the Fourth Proportional to 55,487.56, 76,565.52 and 31,289.76

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Solution

The fourth proportional to 55,487.56, 76,565.52 and 31,289.76 is: 43,175.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,487.56 : 76,565.52 = 31,289.76 : x
  2. Step 2: Convert to fraction form
    55,487.56/76,565.52 = 31,289.76/x
  3. Step 3: Cross multiply
    55,487.56x = 76,565.52 × 31,289.76
  4. Step 4: Simplify right side
    55,487.56x = 2,395,716,745.08
  5. Step 5: Solve for x
    x = 2,395,716,745.08/55,487.56
  6. Step 6: Final answer
    x = 43,175.75

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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.