Home / 81,756.32-112,825.96-45,949.60

Finding the Fourth Proportional to 81,756.32, 112,825.96 and 45,949.60

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Solution

The fourth proportional to 81,756.32, 112,825.96 and 45,949.60 is: 63,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,756.32 : 112,825.96 = 45,949.60 : x
  2. Step 2: Convert to fraction form
    81,756.32/112,825.96 = 45,949.60/x
  3. Step 3: Cross multiply
    81,756.32x = 112,825.96 × 45,949.60
  4. Step 4: Simplify right side
    81,756.32x = 5,184,307,731.62
  5. Step 5: Solve for x
    x = 5,184,307,731.62/81,756.32
  6. Step 6: Final answer
    x = 63,411.71

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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.