Home / 81,024.84-111,814.11-45,212.72

Finding the Fourth Proportional to 81,024.84, 111,814.11 and 45,212.72

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Solution

The fourth proportional to 81,024.84, 111,814.11 and 45,212.72 is: 62,393.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.84 : 111,814.11 = 45,212.72 : x
  2. Step 2: Convert to fraction form
    81,024.84/111,814.11 = 45,212.72/x
  3. Step 3: Cross multiply
    81,024.84x = 111,814.11 × 45,212.72
  4. Step 4: Simplify right side
    81,024.84x = 5,055,419,488.41
  5. Step 5: Solve for x
    x = 5,055,419,488.41/81,024.84
  6. Step 6: Final answer
    x = 62,393.45

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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.