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Finding the Fourth Proportional to 73,130.79, 109,696.17 and 17,726.79

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Solution

The fourth proportional to 73,130.79, 109,696.17 and 17,726.79 is: 26,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,130.79 : 109,696.17 = 17,726.79 : x
  2. Step 2: Convert to fraction form
    73,130.79/109,696.17 = 17,726.79/x
  3. Step 3: Cross multiply
    73,130.79x = 109,696.17 × 17,726.79
  4. Step 4: Simplify right side
    73,130.79x = 1,944,560,969.39
  5. Step 5: Solve for x
    x = 1,944,560,969.39/73,130.79
  6. Step 6: Final answer
    x = 26,590.18

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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.