Home / 53,406.78-80,110.35-20,117.91

Finding the Fourth Proportional to 53,406.78, 80,110.35 and 20,117.91

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Solution

The fourth proportional to 53,406.78, 80,110.35 and 20,117.91 is: 30,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,406.78 : 80,110.35 = 20,117.91 : x
  2. Step 2: Convert to fraction form
    53,406.78/80,110.35 = 20,117.91/x
  3. Step 3: Cross multiply
    53,406.78x = 80,110.35 × 20,117.91
  4. Step 4: Simplify right side
    53,406.78x = 1,611,652,710.78
  5. Step 5: Solve for x
    x = 1,611,652,710.78/53,406.78
  6. Step 6: Final answer
    x = 30,176.93

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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.