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Finding the Fourth Proportional to 84,153.90, 116,120.87 and 48,343.89

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Solution

The fourth proportional to 84,153.90, 116,120.87 and 48,343.89 is: 66,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,153.90 : 116,120.87 = 48,343.89 : x
  2. Step 2: Convert to fraction form
    84,153.90/116,120.87 = 48,343.89/x
  3. Step 3: Cross multiply
    84,153.90x = 116,120.87 × 48,343.89
  4. Step 4: Simplify right side
    84,153.90x = 5,613,734,324.26
  5. Step 5: Solve for x
    x = 5,613,734,324.26/84,153.90
  6. Step 6: Final answer
    x = 66,707.95

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1.5x scale

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.