Home / 71,223.10-98,289.86-39,394.05

Finding the Fourth Proportional to 71,223.10, 98,289.86 and 39,394.05

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Solution

The fourth proportional to 71,223.10, 98,289.86 and 39,394.05 is: 54,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,223.10 : 98,289.86 = 39,394.05 : x
  2. Step 2: Convert to fraction form
    71,223.10/98,289.86 = 39,394.05/x
  3. Step 3: Cross multiply
    71,223.10x = 98,289.86 × 39,394.05
  4. Step 4: Simplify right side
    71,223.10x = 3,872,035,093.78
  5. Step 5: Solve for x
    x = 3,872,035,093.78/71,223.10
  6. Step 6: Final answer
    x = 54,364.88

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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.