Home / 83,289.70-124,891.35-30,672.10

Finding the Fourth Proportional to 83,289.70, 124,891.35 and 30,672.10

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Solution

The fourth proportional to 83,289.70, 124,891.35 and 30,672.10 is: 45,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,289.70 : 124,891.35 = 30,672.10 : x
  2. Step 2: Convert to fraction form
    83,289.70/124,891.35 = 30,672.10/x
  3. Step 3: Cross multiply
    83,289.70x = 124,891.35 × 30,672.10
  4. Step 4: Simplify right side
    83,289.70x = 3,830,679,976.34
  5. Step 5: Solve for x
    x = 3,830,679,976.34/83,289.70
  6. Step 6: Final answer
    x = 45,992.24

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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.