Home / 71,114.78-98,138.58-39,282.86

Finding the Fourth Proportional to 71,114.78, 98,138.58 and 39,282.86

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Solution

The fourth proportional to 71,114.78, 98,138.58 and 39,282.86 is: 54,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,114.78 : 98,138.58 = 39,282.86 : x
  2. Step 2: Convert to fraction form
    71,114.78/98,138.58 = 39,282.86/x
  3. Step 3: Cross multiply
    71,114.78x = 98,138.58 × 39,282.86
  4. Step 4: Simplify right side
    71,114.78x = 3,855,164,098.74
  5. Step 5: Solve for x
    x = 3,855,164,098.74/71,114.78
  6. Step 6: Final answer
    x = 54,210.45

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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.