Home / 81,056.21-111,857.13-47,073.05

Finding the Fourth Proportional to 81,056.21, 111,857.13 and 47,073.05

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Solution

The fourth proportional to 81,056.21, 111,857.13 and 47,073.05 is: 64,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,056.21 : 111,857.13 = 47,073.05 : x
  2. Step 2: Convert to fraction form
    81,056.21/111,857.13 = 47,073.05/x
  3. Step 3: Cross multiply
    81,056.21x = 111,857.13 × 47,073.05
  4. Step 4: Simplify right side
    81,056.21x = 5,265,455,714.06
  5. Step 5: Solve for x
    x = 5,265,455,714.06/81,056.21
  6. Step 6: Final answer
    x = 64,960.55

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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.