Home / 74,179.20-111,276-21,587.52

Finding the Fourth Proportional to 74,179.20, 111,276 and 21,587.52

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Solution

The fourth proportional to 74,179.20, 111,276 and 21,587.52 is: 32,383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.20 : 111,276 = 21,587.52 : x
  2. Step 2: Convert to fraction form
    74,179.20/111,276 = 21,587.52/x
  3. Step 3: Cross multiply
    74,179.20x = 111,276 × 21,587.52
  4. Step 4: Simplify right side
    74,179.20x = 2,402,172,875.52
  5. Step 5: Solve for x
    x = 2,402,172,875.52/74,179.20
  6. Step 6: Final answer
    x = 32,383.38

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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.