Home / 78,871.24-108,838.20-43,054.36

Finding the Fourth Proportional to 78,871.24, 108,838.20 and 43,054.36

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Solution

The fourth proportional to 78,871.24, 108,838.20 and 43,054.36 is: 59,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,871.24 : 108,838.20 = 43,054.36 : x
  2. Step 2: Convert to fraction form
    78,871.24/108,838.20 = 43,054.36/x
  3. Step 3: Cross multiply
    78,871.24x = 108,838.20 × 43,054.36
  4. Step 4: Simplify right side
    78,871.24x = 4,685,959,044.55
  5. Step 5: Solve for x
    x = 4,685,959,044.55/78,871.24
  6. Step 6: Final answer
    x = 59,412.77

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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.