Home / 49,911.60-74,867.40-45,829.20

Finding the Fourth Proportional to 49,911.60, 74,867.40 and 45,829.20

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Solution

The fourth proportional to 49,911.60, 74,867.40 and 45,829.20 is: 68,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,911.60 : 74,867.40 = 45,829.20 : x
  2. Step 2: Convert to fraction form
    49,911.60/74,867.40 = 45,829.20/x
  3. Step 3: Cross multiply
    49,911.60x = 74,867.40 × 45,829.20
  4. Step 4: Simplify right side
    49,911.60x = 3,431,113,048.08
  5. Step 5: Solve for x
    x = 3,431,113,048.08/49,911.60
  6. Step 6: Final answer
    x = 68,743.80

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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.