Home / 91,512.12-137,044.62-56,403.48

Finding the Fourth Proportional to 91,512.12, 137,044.62 and 56,403.48

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Solution

The fourth proportional to 91,512.12, 137,044.62 and 56,403.48 is: 84,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,512.12 : 137,044.62 = 56,403.48 : x
  2. Step 2: Convert to fraction form
    91,512.12/137,044.62 = 56,403.48/x
  3. Step 3: Cross multiply
    91,512.12x = 137,044.62 × 56,403.48
  4. Step 4: Simplify right side
    91,512.12x = 7,729,793,483.28
  5. Step 5: Solve for x
    x = 7,729,793,483.28/91,512.12
  6. Step 6: Final answer
    x = 84,467.43

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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.