Home / 56,403.96-77,835.78-30,910.02

Finding the Fourth Proportional to 56,403.96, 77,835.78 and 30,910.02

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Solution

The fourth proportional to 56,403.96, 77,835.78 and 30,910.02 is: 42,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,403.96 : 77,835.78 = 30,910.02 : x
  2. Step 2: Convert to fraction form
    56,403.96/77,835.78 = 30,910.02/x
  3. Step 3: Cross multiply
    56,403.96x = 77,835.78 × 30,910.02
  4. Step 4: Simplify right side
    56,403.96x = 2,405,905,516.52
  5. Step 5: Solve for x
    x = 2,405,905,516.52/56,403.96
  6. Step 6: Final answer
    x = 42,654.90

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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.