Home / 83,214.12-124,829.10-30,624.60

Finding the Fourth Proportional to 83,214.12, 124,829.10 and 30,624.60

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Solution

The fourth proportional to 83,214.12, 124,829.10 and 30,624.60 is: 45,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,214.12 : 124,829.10 = 30,624.60 : x
  2. Step 2: Convert to fraction form
    83,214.12/124,829.10 = 30,624.60/x
  3. Step 3: Cross multiply
    83,214.12x = 124,829.10 × 30,624.60
  4. Step 4: Simplify right side
    83,214.12x = 3,822,841,255.86
  5. Step 5: Solve for x
    x = 3,822,841,255.86/83,214.12
  6. Step 6: Final answer
    x = 45,939.81

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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.