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Finding the Fourth Proportional to 81,404.48, 122,152.08 and 43,963.76

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Solution

The fourth proportional to 81,404.48, 122,152.08 and 43,963.76 is: 65,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,404.48 : 122,152.08 = 43,963.76 : x
  2. Step 2: Convert to fraction form
    81,404.48/122,152.08 = 43,963.76/x
  3. Step 3: Cross multiply
    81,404.48x = 122,152.08 × 43,963.76
  4. Step 4: Simplify right side
    81,404.48x = 5,370,264,728.62
  5. Step 5: Solve for x
    x = 5,370,264,728.62/81,404.48
  6. Step 6: Final answer
    x = 65,970.14

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1.5x scale

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.