Home / 81,441.32-112,396.26-45,631.12

Finding the Fourth Proportional to 81,441.32, 112,396.26 and 45,631.12

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Solution

The fourth proportional to 81,441.32, 112,396.26 and 45,631.12 is: 62,975.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,441.32 : 112,396.26 = 45,631.12 : x
  2. Step 2: Convert to fraction form
    81,441.32/112,396.26 = 45,631.12/x
  3. Step 3: Cross multiply
    81,441.32x = 112,396.26 × 45,631.12
  4. Step 4: Simplify right side
    81,441.32x = 5,128,767,227.61
  5. Step 5: Solve for x
    x = 5,128,767,227.61/81,441.32
  6. Step 6: Final answer
    x = 62,975.00

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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.