Home / 81,482.13-112,435.43-45,664.47

Finding the Fourth Proportional to 81,482.13, 112,435.43 and 45,664.47

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Solution

The fourth proportional to 81,482.13, 112,435.43 and 45,664.47 is: 63,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,482.13 : 112,435.43 = 45,664.47 : x
  2. Step 2: Convert to fraction form
    81,482.13/112,435.43 = 45,664.47/x
  3. Step 3: Cross multiply
    81,482.13x = 112,435.43 × 45,664.47
  4. Step 4: Simplify right side
    81,482.13x = 5,134,304,091.85
  5. Step 5: Solve for x
    x = 5,134,304,091.85/81,482.13
  6. Step 6: Final answer
    x = 63,011.41

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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.