Home / 78,701.37-108,588.65-50,445.33

Finding the Fourth Proportional to 78,701.37, 108,588.65 and 50,445.33

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Solution

The fourth proportional to 78,701.37, 108,588.65 and 50,445.33 is: 69,602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701.37 : 108,588.65 = 50,445.33 : x
  2. Step 2: Convert to fraction form
    78,701.37/108,588.65 = 50,445.33/x
  3. Step 3: Cross multiply
    78,701.37x = 108,588.65 × 50,445.33
  4. Step 4: Simplify right side
    78,701.37x = 5,477,790,031.28
  5. Step 5: Solve for x
    x = 5,477,790,031.28/78,701.37
  6. Step 6: Final answer
    x = 69,602.22

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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.