Home / 61,849.84-92,781.58-19,720.12

Finding the Fourth Proportional to 61,849.84, 92,781.58 and 19,720.12

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Solution

The fourth proportional to 61,849.84, 92,781.58 and 19,720.12 is: 29,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,849.84 : 92,781.58 = 19,720.12 : x
  2. Step 2: Convert to fraction form
    61,849.84/92,781.58 = 19,720.12/x
  3. Step 3: Cross multiply
    61,849.84x = 92,781.58 × 19,720.12
  4. Step 4: Simplify right side
    61,849.84x = 1,829,663,891.39
  5. Step 5: Solve for x
    x = 1,829,663,891.39/61,849.84
  6. Step 6: Final answer
    x = 29,582.35

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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.