Home / 78,941.43-118,440.09-49,324.59

Finding the Fourth Proportional to 78,941.43, 118,440.09 and 49,324.59

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Solution

The fourth proportional to 78,941.43, 118,440.09 and 49,324.59 is: 74,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941.43 : 118,440.09 = 49,324.59 : x
  2. Step 2: Convert to fraction form
    78,941.43/118,440.09 = 49,324.59/x
  3. Step 3: Cross multiply
    78,941.43x = 118,440.09 × 49,324.59
  4. Step 4: Simplify right side
    78,941.43x = 5,842,008,878.81
  5. Step 5: Solve for x
    x = 5,842,008,878.81/78,941.43
  6. Step 6: Final answer
    x = 74,004.35

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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.