Home / 61,821.28-92,726.80-19,699.64

Finding the Fourth Proportional to 61,821.28, 92,726.80 and 19,699.64

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Solution

The fourth proportional to 61,821.28, 92,726.80 and 19,699.64 is: 29,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,821.28 : 92,726.80 = 19,699.64 : x
  2. Step 2: Convert to fraction form
    61,821.28/92,726.80 = 19,699.64/x
  3. Step 3: Cross multiply
    61,821.28x = 92,726.80 × 19,699.64
  4. Step 4: Simplify right side
    61,821.28x = 1,826,684,578.35
  5. Step 5: Solve for x
    x = 1,826,684,578.35/61,821.28
  6. Step 6: Final answer
    x = 29,547.83

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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.