Home / 66,578.19-99,867.55-16,658.15

Finding the Fourth Proportional to 66,578.19, 99,867.55 and 16,658.15

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Solution

The fourth proportional to 66,578.19, 99,867.55 and 16,658.15 is: 24,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,578.19 : 99,867.55 = 16,658.15 : x
  2. Step 2: Convert to fraction form
    66,578.19/99,867.55 = 16,658.15/x
  3. Step 3: Cross multiply
    66,578.19x = 99,867.55 × 16,658.15
  4. Step 4: Simplify right side
    66,578.19x = 1,663,608,368.00
  5. Step 5: Solve for x
    x = 1,663,608,368.00/66,578.19
  6. Step 6: Final answer
    x = 24,987.29

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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.