Home / 81,114.84-111,937.30-45,305.36

Finding the Fourth Proportional to 81,114.84, 111,937.30 and 45,305.36

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Solution

The fourth proportional to 81,114.84, 111,937.30 and 45,305.36 is: 62,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,114.84 : 111,937.30 = 45,305.36 : x
  2. Step 2: Convert to fraction form
    81,114.84/111,937.30 = 45,305.36/x
  3. Step 3: Cross multiply
    81,114.84x = 111,937.30 × 45,305.36
  4. Step 4: Simplify right side
    81,114.84x = 5,071,359,673.93
  5. Step 5: Solve for x
    x = 5,071,359,673.93/81,114.84
  6. Step 6: Final answer
    x = 62,520.74

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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.