Home / 115,283.58-172,921.05-36,402.54

Finding the Fourth Proportional to 115,283.58, 172,921.05 and 36,402.54

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Solution

The fourth proportional to 115,283.58, 172,921.05 and 36,402.54 is: 54,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,283.58 : 172,921.05 = 36,402.54 : x
  2. Step 2: Convert to fraction form
    115,283.58/172,921.05 = 36,402.54/x
  3. Step 3: Cross multiply
    115,283.58x = 172,921.05 × 36,402.54
  4. Step 4: Simplify right side
    115,283.58x = 6,294,765,439.47
  5. Step 5: Solve for x
    x = 6,294,765,439.47/115,283.58
  6. Step 6: Final answer
    x = 54,602.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.