Home / 79,618.72-109,876.48-43,811.36

Finding the Fourth Proportional to 79,618.72, 109,876.48 and 43,811.36

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Solution

The fourth proportional to 79,618.72, 109,876.48 and 43,811.36 is: 60,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,618.72 : 109,876.48 = 43,811.36 : x
  2. Step 2: Convert to fraction form
    79,618.72/109,876.48 = 43,811.36/x
  3. Step 3: Cross multiply
    79,618.72x = 109,876.48 × 43,811.36
  4. Step 4: Simplify right side
    79,618.72x = 4,813,838,020.81
  5. Step 5: Solve for x
    x = 4,813,838,020.81/79,618.72
  6. Step 6: Final answer
    x = 60,461.13

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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.