Home / 81,043.02-111,839.50-45,233.02

Finding the Fourth Proportional to 81,043.02, 111,839.50 and 45,233.02

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Solution

The fourth proportional to 81,043.02, 111,839.50 and 45,233.02 is: 62,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,043.02 : 111,839.50 = 45,233.02 : x
  2. Step 2: Convert to fraction form
    81,043.02/111,839.50 = 45,233.02/x
  3. Step 3: Cross multiply
    81,043.02x = 111,839.50 × 45,233.02
  4. Step 4: Simplify right side
    81,043.02x = 5,058,838,340.29
  5. Step 5: Solve for x
    x = 5,058,838,340.29/81,043.02
  6. Step 6: Final answer
    x = 62,421.64

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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.