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Finding the Fourth Proportional to 79,159.66, 109,240.30 and 43,350.36

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Solution

The fourth proportional to 79,159.66, 109,240.30 and 43,350.36 is: 59,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,159.66 : 109,240.30 = 43,350.36 : x
  2. Step 2: Convert to fraction form
    79,159.66/109,240.30 = 43,350.36/x
  3. Step 3: Cross multiply
    79,159.66x = 109,240.30 × 43,350.36
  4. Step 4: Simplify right side
    79,159.66x = 4,735,606,331.51
  5. Step 5: Solve for x
    x = 4,735,606,331.51/79,159.66
  6. Step 6: Final answer
    x = 59,823.48

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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.