Home / 81,636.32-112,664.52-45,824.08

Finding the Fourth Proportional to 81,636.32, 112,664.52 and 45,824.08

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Solution

The fourth proportional to 81,636.32, 112,664.52 and 45,824.08 is: 63,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,636.32 : 112,664.52 = 45,824.08 : x
  2. Step 2: Convert to fraction form
    81,636.32/112,664.52 = 45,824.08/x
  3. Step 3: Cross multiply
    81,636.32x = 112,664.52 × 45,824.08
  4. Step 4: Simplify right side
    81,636.32x = 5,162,747,977.64
  5. Step 5: Solve for x
    x = 5,162,747,977.64/81,636.32
  6. Step 6: Final answer
    x = 63,240.82

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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.