Home / 79,223.18-109,331-45,237.20

Finding the Fourth Proportional to 79,223.18, 109,331 and 45,237.20

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Solution

The fourth proportional to 79,223.18, 109,331 and 45,237.20 is: 62,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,223.18 : 109,331 = 45,237.20 : x
  2. Step 2: Convert to fraction form
    79,223.18/109,331 = 45,237.20/x
  3. Step 3: Cross multiply
    79,223.18x = 109,331 × 45,237.20
  4. Step 4: Simplify right side
    79,223.18x = 4,945,828,313.20
  5. Step 5: Solve for x
    x = 4,945,828,313.20/79,223.18
  6. Step 6: Final answer
    x = 62,429.06

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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.