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Finding the Fourth Proportional to 83,291.20, 124,893.60 and 30,673.60

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Solution

The fourth proportional to 83,291.20, 124,893.60 and 30,673.60 is: 45,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,291.20 : 124,893.60 = 30,673.60 : x
  2. Step 2: Convert to fraction form
    83,291.20/124,893.60 = 30,673.60/x
  3. Step 3: Cross multiply
    83,291.20x = 124,893.60 × 30,673.60
  4. Step 4: Simplify right side
    83,291.20x = 3,830,936,328.96
  5. Step 5: Solve for x
    x = 3,830,936,328.96/83,291.20
  6. Step 6: Final answer
    x = 45,994.49

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1.5x scale

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.