Home / 83,911.10-115,812.86-48,101.40

Finding the Fourth Proportional to 83,911.10, 115,812.86 and 48,101.40

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Solution

The fourth proportional to 83,911.10, 115,812.86 and 48,101.40 is: 66,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,911.10 : 115,812.86 = 48,101.40 : x
  2. Step 2: Convert to fraction form
    83,911.10/115,812.86 = 48,101.40/x
  3. Step 3: Cross multiply
    83,911.10x = 115,812.86 × 48,101.40
  4. Step 4: Simplify right side
    83,911.10x = 5,570,760,463.50
  5. Step 5: Solve for x
    x = 5,570,760,463.50/83,911.10
  6. Step 6: Final answer
    x = 66,388.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.