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Finding the Fourth Proportional to 79,622.40, 109,866.36 and 45,624.35

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Solution

The fourth proportional to 79,622.40, 109,866.36 and 45,624.35 is: 62,954.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622.40 : 109,866.36 = 45,624.35 : x
  2. Step 2: Convert to fraction form
    79,622.40/109,866.36 = 45,624.35/x
  3. Step 3: Cross multiply
    79,622.40x = 109,866.36 × 45,624.35
  4. Step 4: Simplify right side
    79,622.40x = 5,012,581,261.87
  5. Step 5: Solve for x
    x = 5,012,581,261.87/79,622.40
  6. Step 6: Final answer
    x = 62,954.41

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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.