Home / 81,361.92-112,280.40-45,555.06

Finding the Fourth Proportional to 81,361.92, 112,280.40 and 45,555.06

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Solution

The fourth proportional to 81,361.92, 112,280.40 and 45,555.06 is: 62,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.92 : 112,280.40 = 45,555.06 : x
  2. Step 2: Convert to fraction form
    81,361.92/112,280.40 = 45,555.06/x
  3. Step 3: Cross multiply
    81,361.92x = 112,280.40 × 45,555.06
  4. Step 4: Simplify right side
    81,361.92x = 5,114,940,358.82
  5. Step 5: Solve for x
    x = 5,114,940,358.82/81,361.92
  6. Step 6: Final answer
    x = 62,866.51

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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.