Home / 81,467.70-112,430.05-45,660.02

Finding the Fourth Proportional to 81,467.70, 112,430.05 and 45,660.02

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Solution

The fourth proportional to 81,467.70, 112,430.05 and 45,660.02 is: 63,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,467.70 : 112,430.05 = 45,660.02 : x
  2. Step 2: Convert to fraction form
    81,467.70/112,430.05 = 45,660.02/x
  3. Step 3: Cross multiply
    81,467.70x = 112,430.05 × 45,660.02
  4. Step 4: Simplify right side
    81,467.70x = 5,133,558,498.53
  5. Step 5: Solve for x
    x = 5,133,558,498.53/81,467.70
  6. Step 6: Final answer
    x = 63,013.42

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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.