Home / 92,922.13-128,233.05-57,135.52

Finding the Fourth Proportional to 92,922.13, 128,233.05 and 57,135.52

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Solution

The fourth proportional to 92,922.13, 128,233.05 and 57,135.52 is: 78,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,922.13 : 128,233.05 = 57,135.52 : x
  2. Step 2: Convert to fraction form
    92,922.13/128,233.05 = 57,135.52/x
  3. Step 3: Cross multiply
    92,922.13x = 128,233.05 × 57,135.52
  4. Step 4: Simplify right side
    92,922.13x = 7,326,661,672.35
  5. Step 5: Solve for x
    x = 7,326,661,672.35/92,922.13
  6. Step 6: Final answer
    x = 78,847.33

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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.