Home / 81,213.64-112,088.66-47,241.82

Finding the Fourth Proportional to 81,213.64, 112,088.66 and 47,241.82

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Solution

The fourth proportional to 81,213.64, 112,088.66 and 47,241.82 is: 65,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,213.64 : 112,088.66 = 47,241.82 : x
  2. Step 2: Convert to fraction form
    81,213.64/112,088.66 = 47,241.82/x
  3. Step 3: Cross multiply
    81,213.64x = 112,088.66 × 47,241.82
  4. Step 4: Simplify right side
    81,213.64x = 5,295,272,838.20
  5. Step 5: Solve for x
    x = 5,295,272,838.20/81,213.64
  6. Step 6: Final answer
    x = 65,201.77

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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.