Home / 66,913.61-100,379.96-21,925.34

Finding the Fourth Proportional to 66,913.61, 100,379.96 and 21,925.34

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Solution

The fourth proportional to 66,913.61, 100,379.96 and 21,925.34 is: 32,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,913.61 : 100,379.96 = 21,925.34 : x
  2. Step 2: Convert to fraction form
    66,913.61/100,379.96 = 21,925.34/x
  3. Step 3: Cross multiply
    66,913.61x = 100,379.96 × 21,925.34
  4. Step 4: Simplify right side
    66,913.61x = 2,200,864,752.19
  5. Step 5: Solve for x
    x = 2,200,864,752.19/66,913.61
  6. Step 6: Final answer
    x = 32,891.14

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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.