Home / 55,793.21-83,689.65-20,254.50

Finding the Fourth Proportional to 55,793.21, 83,689.65 and 20,254.50

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Solution

The fourth proportional to 55,793.21, 83,689.65 and 20,254.50 is: 30,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,793.21 : 83,689.65 = 20,254.50 : x
  2. Step 2: Convert to fraction form
    55,793.21/83,689.65 = 20,254.50/x
  3. Step 3: Cross multiply
    55,793.21x = 83,689.65 × 20,254.50
  4. Step 4: Simplify right side
    55,793.21x = 1,695,092,015.93
  5. Step 5: Solve for x
    x = 1,695,092,015.93/55,793.21
  6. Step 6: Final answer
    x = 30,381.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.