Home / 55,611.18-76,745.34-30,460.68

Finding the Fourth Proportional to 55,611.18, 76,745.34 and 30,460.68

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Solution

The fourth proportional to 55,611.18, 76,745.34 and 30,460.68 is: 42,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,611.18 : 76,745.34 = 30,460.68 : x
  2. Step 2: Convert to fraction form
    55,611.18/76,745.34 = 30,460.68/x
  3. Step 3: Cross multiply
    55,611.18x = 76,745.34 × 30,460.68
  4. Step 4: Simplify right side
    55,611.18x = 2,337,715,243.23
  5. Step 5: Solve for x
    x = 2,337,715,243.23/55,611.18
  6. Step 6: Final answer
    x = 42,036.79

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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.