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Finding the Fourth Proportional to 67,587.52, 101,386.54 and 20,199

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Solution

The fourth proportional to 67,587.52, 101,386.54 and 20,199 is: 30,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,587.52 : 101,386.54 = 20,199 : x
  2. Step 2: Convert to fraction form
    67,587.52/101,386.54 = 20,199/x
  3. Step 3: Cross multiply
    67,587.52x = 101,386.54 × 20,199
  4. Step 4: Simplify right side
    67,587.52x = 2,047,906,721.46
  5. Step 5: Solve for x
    x = 2,047,906,721.46/67,587.52
  6. Step 6: Final answer
    x = 30,300.07

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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.