Home / 81,002.89-111,784.06-45,192.91

Finding the Fourth Proportional to 81,002.89, 111,784.06 and 45,192.91

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Solution

The fourth proportional to 81,002.89, 111,784.06 and 45,192.91 is: 62,366.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,002.89 : 111,784.06 = 45,192.91 : x
  2. Step 2: Convert to fraction form
    81,002.89/111,784.06 = 45,192.91/x
  3. Step 3: Cross multiply
    81,002.89x = 111,784.06 × 45,192.91
  4. Step 4: Simplify right side
    81,002.89x = 5,051,846,963.01
  5. Step 5: Solve for x
    x = 5,051,846,963.01/81,002.89
  6. Step 6: Final answer
    x = 62,366.26

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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.