Home / 81,427.68-112,364.82-45,617.58

Finding the Fourth Proportional to 81,427.68, 112,364.82 and 45,617.58

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Solution

The fourth proportional to 81,427.68, 112,364.82 and 45,617.58 is: 62,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.68 : 112,364.82 = 45,617.58 : x
  2. Step 2: Convert to fraction form
    81,427.68/112,364.82 = 45,617.58/x
  3. Step 3: Cross multiply
    81,427.68x = 112,364.82 × 45,617.58
  4. Step 4: Simplify right side
    81,427.68x = 5,125,811,165.54
  5. Step 5: Solve for x
    x = 5,125,811,165.54/81,427.68
  6. Step 6: Final answer
    x = 62,949.25

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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.