Home / 81,306.03-122,011.10-43,892.16

Finding the Fourth Proportional to 81,306.03, 122,011.10 and 43,892.16

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Solution

The fourth proportional to 81,306.03, 122,011.10 and 43,892.16 is: 65,866.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,306.03 : 122,011.10 = 43,892.16 : x
  2. Step 2: Convert to fraction form
    81,306.03/122,011.10 = 43,892.16/x
  3. Step 3: Cross multiply
    81,306.03x = 122,011.10 × 43,892.16
  4. Step 4: Simplify right side
    81,306.03x = 5,355,330,722.98
  5. Step 5: Solve for x
    x = 5,355,330,722.98/81,306.03
  6. Step 6: Final answer
    x = 65,866.34

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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.