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Finding the Fourth Proportional to 67,127.54, 100,695.76 and 19,746.88

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Solution

The fourth proportional to 67,127.54, 100,695.76 and 19,746.88 is: 29,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,127.54 : 100,695.76 = 19,746.88 : x
  2. Step 2: Convert to fraction form
    67,127.54/100,695.76 = 19,746.88/x
  3. Step 3: Cross multiply
    67,127.54x = 100,695.76 × 19,746.88
  4. Step 4: Simplify right side
    67,127.54x = 1,988,427,089.23
  5. Step 5: Solve for x
    x = 1,988,427,089.23/67,127.54
  6. Step 6: Final answer
    x = 29,621.63

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1.5x scale

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.