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Finding the Fourth Proportional to 75,017, 112,526.58 and 19,613

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Solution

The fourth proportional to 75,017, 112,526.58 and 19,613 is: 29,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,017 : 112,526.58 = 19,613 : x
  2. Step 2: Convert to fraction form
    75,017/112,526.58 = 19,613/x
  3. Step 3: Cross multiply
    75,017x = 112,526.58 × 19,613
  4. Step 4: Simplify right side
    75,017x = 2,206,983,813.54
  5. Step 5: Solve for x
    x = 2,206,983,813.54/75,017
  6. Step 6: Final answer
    x = 29,419.78

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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.